Answers
so when we plug in the values of our two points, we get
2-(-1)/(0-(-1))
this gets us 3/1
Which gives us the slope m=3
Answer:
c) 3
Step-by-step explanation:
The first step is to see if it is positive or negative. since it is going upward and to the right, it is positive, if it is going upward and to the left it is negative. So since it is positive the answer is either a or c. Now that we have our 2 points we need to calculate how far they are. Whenever measuring the distance of 2 points, look how many units it's above or below, then divide by the units it's to the left or right. So for this, it takes 3 points to go up, then 1 point to the side. We don't calculate 1 to the side and 3 down. We always calculate if it goes up and down, and then to the sides.
Related Questions
how to do graphs of quadratic functions
Answers
Answer:
The Graph of a Quadratic Function
A quadratic function is a polynomial function of degree 2 which can be written in the general form.
Step-by-step explanation:
Example: Graph: f(x)=−x2−2x+3.
Solution:
Step 1: Determine the y-intercept. To do this, set x=0 and find f(0).
f(x)f(0)===−x2−2x+3−(0)2−2(0)+33
The y-intercept is (0,3).
Step 2: Determine the x-intercepts if any. To do this, set f(x)=0 and solve for x.
f(x)000x+3x======−x2−2x+3−x2−2x+3x2+2x−3(x+3)(x−1)0−3orx−1x==Set f(x)=0.Multiply both sides by −1.Factor.Set each factor equal to zero.01
Here where f(x)=0, we obtain two solutions. Hence, there are two x-intercepts, (−3,0) and (1,0).
Step 3: Determine the vertex. One way to do this is to first use x=−b2a to find the x-value of the vertex and then substitute this value in the function to find the corresponding y-value. In this example, a=−1 and b=−2.
x====−b2a−(−2)2(−1)2−2−1
Substitute −1 into the original function to find the corresponding y-value.
f(x)f(−1)====−x2−2x+3−(−1)2−2(−1)+3−1+2+34
The vertex is (−1,4).
Step 4: Determine extra points so that we have at least five points to plot. Ensure a good sampling on either side of the line of symmetry. In this example, one other point will suffice. Choose x=−2 and find the corresponding y-value.
x −2 y 3f(−2)=−(−2)2−2(−2)+3=−4+4+3=3Point(−2,3)
Our fifth point is (−2,3).
Step 5: Plot the points and sketch the graph. To recap, the points that we have found are
y−intercept:x−intercepts:Vertex:Extra point:(0,3)(−3,0) and (1,0)(−1,4)(−2,3)
Answer:
Aimee wants to order some DVDs from Amazon. Each DVD costs $8.49 and shipping for the entire order is $5. She has only $70 to spend. How many DVDs can she order?
Answers
Answer:
7 cds
Step-by-step explanation:
8.49*x +5=70 => 8.49*x=65 => x= 65/8.49 => x= 7 approximately
hi can someone please help
Answers
Answer:32
Step-by-step explanation:
A turtle and a snail are 300 feet apart when they start moving towards each other. The
turtle is moving at a speed of 5 feet per minute, and the snail is moving at a speed of 1
foot per minute.
How fast are they approaching each other?
Answers
Answer:
6 feet per minute
Step-by-step explanation:
Answer:
6 feet per minute.
Step-by-step explanation:
5ft + 1ft = 6ft per minute.
Three consecutive integers numbers add up to -6. What are the numbers?
Answers
Answer:
-1, -2, and -3
Step-by-step explanation:
-1 + -2 + -3 = -6
What is the equation for a function that has a slope of 2/3 and runs
through the point (6, 18)?
Please help me
Answers
I need help on 12 please 14 points
Answers
Step-by-step explanation:
P = 6+6+5x-3 + 5x -3 = 10x+6
A = 6(5x-3) = 30x -18
Answer:
30x-18 is the area
the perimeter is 10x+6
Step-by-step explanation:
not enough info to solve for x, but we can still have a variable
6(5x-3)
distribute
6(5x)-6(3)
30x-18 is the area
the perimeter is 10x+6
what is the correct equation of the line shown at the right?
Answers
Answer:
F
Step-by-step explanation:
rise/run is 3/2 which is the number before the x and the y intercept (the last number in the equation) is 3
Which statement is true?
y = 12(3)*
Growth Factor is 3
Decay factor is 3
growth factor is 12
decay factor is 12
Answers
Growth factor is 3
Julie says the most amount of time spent on homework is 1/2 times the least amount of time spent of homework. Is she correct? Explain
Answers
Answer:
Step-by-step explanation:
I believe this question is coming from a statistical data, which for whatever reasons is not present here. If Julie says the most amount of time spent, it meant that the time most time people spent on the homework. And if she says the least amount of time. This means that the least number of time people spent on the homework.
Then again, she says it is half times, this means that if 5 people spent the most amount of time in doing something, then 10 people must have spent the least amount of time doing the same exact thing.
I hope you understand
ill mark brainlist plss help
Answers
b. If C(a) is the cost in dollars to plant a acres of soybeans, what does C-1(35,000) represent?
Answers
9514 1404 393
Answer:
the number of acres planted for a cost of $35,000
Step-by-step explanation:
If the function C gives the dollar cost of planting a certain acreage, then the inverse function C^-1 gives the acreage planted for a given dollar cost.
C^-1(35000) gives the acreage planted for a cost of $35,000
-18=d+4
me and my friends are stuck
Answers
The cylindrical canister of a fire extinguisher
has a diameter of 4 inches and is 12 inches
high. About how many square inches of
metal (total surface area) would be needed
to manufacture one fire extinguisher?
Answers
Step-by-step explanation:
2*22/7*48=301.714 .This the answer
Answer:
Yeah, what they said above.
Step-by-step explanation:
The area of rectangular is 64m the length of the pool is 12 m less that the width .The situation can be represented by the equation x
Answers
Answer:
Width = 16 m
Length = 4 m
Step-by-step explanation:
The area of rectangular is 64m² the length of the pool is 12 m less that the width . The situation can be represented by the equation x
Area of a rectangle = Length × Width
L = W - 12
Hence:
64 = (W - 12) × W
64 = W² - 12W
W² - 12W - 64 = 0
Factor using
(W + 4)(W - 16) = 0
Width = 16m
Length = W - 12
Length = 16 m - 12 m
= 4 m
Can someone please help with this?
Answers
Answer:
true
Step-by-step explanation:
first find the median of the lower and upper half of the data. These values are quartile 1 (Q1) and quartile 3 (Q3). The IQR is the difference between Q3 and Q1.
Ellen has a bag with 3 red marbles and 2 blue marbles in it. She is going to randomly draw a marble from the bag 300 times, putting the marble back in the bag after each draw. 3 red marbles and 2 blue marbles What is the best prediction for the number of times that Ellen will draw a blue marble?
Answers
Answer:
120
Step-by-step explanation:
Blue marbles = 2
Red marbles = 3
Total marbles = 2 + 3 = 5
If a marble is drawn 300 times ;prediction for the number of times a blue marble will be drawn :
P(drawing a blue marble) = number of blue marbles / total number of marbles
= 2 /5 = 0.4
Predicted number of times blue is drawn in 300 selections :
300 * 0.4 = 120
Approximately 120 times
At the start of the show there were 2000 liters of oxygen in the
studio Now that we are 10 minutes into the show, there are 1950 liters. Is
someone. breathing in here? What is their rate of oxygen consumption in liters do
per minute?
please help
Answers
Answer:
11,000
Step-by-step explanation:
I'll give brainliest to whoever answers correctly.
Answers
Answer:
29
Step-by-step explanation: pls dont get mad if it is wrong
<3<3<3<3<3<3
Answer:
29
<3<3<3<3<3<3
shawty baes please help!! ( no links please!)
Answers
Or D : X=9
Choose one answer pls
Answers
Answer:
[tex]x=\sqrt{41}[/tex]
Step-by-step explanation:
Pythagorean theorem: [tex]a^{2}+ b^{2}=c^{2}[/tex]
Answer:
Option B
Step-by-step explanation:
Pythagorean Theron is:
[tex]a^2+b^2=c^2\\\\\text{a and b - legs}\\\text{c - hypotenuse}[/tex]
We would be solving for 'c', or the hypotenuse.
[tex]4^2+5^2=c^2\\\\16+25=c^2\\\\41=c^2\\\\\boxed{\sqrt{41}, -\sqrt{41} =c}[/tex]
The correct answer should be option B.
Hope this helps.
What is the length of a diagonal of a square with a side length of 6?
A. 3
B. V3
C. 3.V2
D. 62
Answers
The circumference of a circle is approximately 131.88 centimeters What is the area of the shaded region (6/10 of a circle)
Answers
Answer:
82.97cm^2
Step-by-step explanation:
Given data
Circumference= 131.88 centimeters
We want to find the area of 6/10 part of a circle
Firstly, let us find the area of the circle
We need to get the radius
C= 2πr
131.88= 2*3.142*r
131.88=6.284r
r= 131.88/6.284
r=20.98 cm
Area= πr^2
Area= 3.142*20.98^2
Area= 3.142*440.16
Area= 1382.98cm^2
Hence 6/10 of a 1382.98
=0.06*1382.98
=82.97cm^2
Factor completely 64x2
Answers
Step-by-step explanation:
not factorable....rational numbers
Which best describes the figure that is represented by the following coordinates?
A(-4, 3), B(2,3), C(3, -1) and D(-5, -1)
у
10-
a rectangle
8
6
a trapezoid
4
2
a rhombus
10-8
-6 -4
24
8
X
0
-2
a parallelogram
-4-
-6
-8
- 10
Answers
9514 1404 393
Answer:
(b) a trapezoid
Step-by-step explanation:
A graph of the points reveals one pair of parallel sides: a trapezoid.
Compare lengths. Write >, <, or = .
22 ft __ 7 yd 11 in.
Answers
find the distance between the points (-4,-2) and (3,3)
Answers
Answer:
8.6
Step-by-step explanation:
Use the distance formula to find the distance between the two points.
√[(x₂ - x₁)² + (y₂ - y₁)²]
√[(3 - -4)² + (3 - -2)²]
√[(7)² + (5)²]
√[(49) + (25)]
√74
8.6
it takes 8 builders 12 days to build a wall .How long will it take for 4 builders to build the same wall ?
Answers
Answer:24
Step-by-step explanation:
In a class, there are twice more boys than girls. Six boys leave the class and six girls arrive ;
therefore, there are twice more girls than boys .
How many boys and girls were there at first ?
please show calculations steps plus this should be solved as a system
Answers
Answer:
Boys= 12
Girls= 6
Step-by-step explanation:
Let no: of girls be 'x'
No: of boys= 2x
boys after= 2x-6
girls after = x+6
according to the question,
2(2x-6)=x+6
4x-12=x+6
3x=18
x=6
No: of girls at first= 6
No: of boys at first=2*6=12
write an equation in slope-intercept for the line that has a slope of 1/2 and goes through the point (4, 7)
Answers
Answer:
y = 1/2x + 5
Step-by-step explanation:
The formula for an equation is y = mx + b
m is the slope. It is given
y = 1/2x + b
b is the y-intercept
In this case, we must substitute to find the y-intercept
We are given coordinate pair (4,7)
Plug our pair in and we get => 7 = 1/2(4) + b
=> 7 = 2 + b
easily, we find b = 5
We get our equation: y = 1/2x + 5
Cheers!