Before we solve the equation let's take a look at it.
f(x) = -2x + 3
See how x appears in both f(x) and as the variable in the second half of the equation?
f(x) means "The function of x." You might also see g(x), h(x), and while those are the most common it can really be any letter, and any variable inside the parentheses.
So when we see f(-1), that means "The function of -1" or "The function of x when it is equal to -1."
Catching on? We need to replace x with -1 to solve for f(-1).
So here we go:
f(x) = -2x + 3
f(-1) = -2(-1) + 3
f(-1) = 2 + 3
f(-1) = 5
Voilà! We have solved for f(-1). Hope this helped.
Write the equation of a line that is perpendicular to the given line and that passes through the given point y+ 2 = -(x - 5). (4.3) Oy=-3x+15 Oy=-3x - 9 Oy=-4x + 3 Oy=-x-11 =-
Answer:
B. y = -3x - 9
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
The equation perpendicular to the given equation is y=-3x-9. Therefore, option B is the correct answer.
Given that, the equation of the line is y+2 = 1/3 (x-5) and the coordinate point is (-4, 3).
Here, the slope is 1/3
The slope of a line perpendicular to given line is m1=-1/m2
So, the slope is m=-3
Substitute m=-3 and (x, y)=(-4, 3) in y=mx+c, we get
3=-3×(-4)+c
3=12+c
c=-9
So, the equation is y=-3x-9
Therefore, option B is the correct answer.
To learn more about the slope of a line visit:
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HELP ASAP ASAP ASAP HELP
Answer:
4
9 9
14 14
19 19
Step-by-step explanation:
+30 puntos.
1) 7 (x+3) 5x + 5
Step-by-step explanation:
[tex]7(x+3)5x+5 \\
(7x+21)5x +5 \\ 35 {x}^{2} + 105x + 5[/tex]
All I need is the congruency statement and postulate ( SSS,HL,SAS,AAS,ASA,Not crungruent)
Answer:
I believe its AAS
Step-by-step explanation:
convert 76.1% to a decimal
Answered ASAP
Answer:
0.761
Step-by-step explanation:
You must divide the answer by 200 as you are obtaining the decimal value from a value over 100.
A plane starts at the origin of the coordinate plane The plane flies 0.5 units left and 3.5 units up to point X. What are the coordinates of point X?
Answer:
(-0.5, 3.5)
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The line of best fit for a scatterplot is shown what is the equation of this line of best fit in slope intercept form?
(pic provided)
1. y=-6x+3/4
2.y=6x+3/4
3. y=-3/4x+6
4. y=3/4x+6
Answer:
3. y=-3/4+6
Step-by-step explanation:
The y-int is 6, so you can already cross out the first two answers. Then, you know the slope is negative because the line is going downward, so -3/4 has to be the slope bc it is negative.
Answer:
y=-3/4x+6
Step-by-step explanation:
the y/intercept is (0,6) because that is the point where the line crosses the y-axis
knowing that use the point (0,6) and (4,3) to find the slope use rise over run so it goes up 3 and right 4
using the slope intercept equation y=mx+b it is y= -3/4+6
it is negative because its going downward
hope this makes sense and helps you guys!
will give brainliest for this
Answer:
B
Step-by-step explanation:
I need yo solve y on this problem. 16x+9y-2x
Answer:
14x+9y
Step-by-step explanation:
Combine Like terms. 16x-2x=14x
dont forget the 9y
so 14x+9y
Find an expression, in it's simplest form, for the perimeter of this hexagon.
Answer:20
Step-by-step explanation:
-8, 0, 8, 16, 24,... Find the 65th term value.
Answer:
520
Step-by-step explanation:
nth term = + 8
Answer:
need more info. this doesn't make sense
Step-by-step explanation:
subtract 637.42 - 29.71
Answer:
607.71
Step-by-step explanation:
637.42-29.71=607.71
Answer:
607.71
Step-by-step explanation:
Find the perimeter of an isosceles triangle. base edge = 23cm and vertex angle = 42°
4 is what percent of 20
It costs $3.50 for ¾ pound of chicken. How much does it cost for 1 pound of chicken?
Answer:
£4.38
Step-by-step explanation:
You need to find 1/4 and then add it on
*4. What is (2.0 x 10-1)3 in
scientific notation?
A 2.0 x 10 -3
1
B 2.0 X 1/10 3
C 8.0 X 1/103
D 8.0 x 10 -3
Answer:
D
Step-by-step explanation:
Need help w this due today
Answer:
Step-by-step explanation:
you have a right triangle,
a^2+b^2=c^2
10^2=4^2+b^2
100=16+b^2
100-16=b^2
84=b^2
b=9.16
Solve the following inequality algebraically, 5|x + 5| + 7 => 22
Answer:
x≥−2 or x≤−8
Step-by-step explanation:
.
Answer:
x1 = -8
x2 = -2
Step-by-step explanation:
Tom works 12 hours a day at a café. He is paid $8 an hour. How much
money is he paid in 10 days?
Answer:
Tom will be paid $140 in 10 days
Step-by-step explanation:
Answer:
Tom will be paid 960$ is 10 days
w6+58=-138!! what is x PLEASE
Answer:
the answer is -196 im sorry if i got it wrong
Step-by-step explanation:
Answer:
w = ~ - 32.7
Step-by-step explanation:
w6 + 58 = -138
Subtract 58 on both sides
w6 + 58 - 58 = -138 - 58
w6 = -196
Divide by 6 on both sides to isolate the variable
w6/6 = -196/6
w = - 32.66666666666667
w = ~ - 32.7
Hope this helped!
Have a supercalifragilisticexpialidocious day!
2(5x-9) = 11x-3 find m
Answer:
129 degrees
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
The measure of angle PST 129 degrees after applying the properties of the triangle.
What is the triangle?In terms of geometry, a triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
It is given that:
The triangle is shown in the picture.
The equation can be made:
5x - 9 = (180 - (11x - 3))
5x + 11x = 180 + 3 + 9
16x = 192
x = 192/16 = 12
The measure of angle PST = 11x - 3
= 11(12) - 3
= 129 degrees
Thus, the measure of angle PST is 129 degrees after applying the properties of the triangle.
Learn more about the triangle here:
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What is the y-intercept of the line?
110
A
2
B
3
000
-7
-6
D
(1/4)^{5/2}
pls help
Answer:
5/8
Step-by-step explanation:
So far, Phillip has completed 3/4 of his run. If he has run 9 miles, how far does he plan to run
Answer:
He has to run a total of 12 miles and has 3 more miles to run
Step-by-step explanation:
Well we know that 3/4 is 9 out of the total miles he is willing to run. We can divide 9 by 3 to get 1
Now we know 1/4 of his run is 3 miles
3*4= 12
He has to run a total of 12 miles and has 3 more miles to run
Answer:
He plans to run 12 miles
Step-by-step explanation:
He plans to run 12 miles because if he ran 9 miles so far and that is 3/4 of his way then you would do 3 divided by 9 to get 3. Then you would add a 3 to nine because that 3 would be the last quarter t complete his run.
Can someone help me? Thanks! :)
Answer:
60
Step-by-step explanation:
70+50=120
180-120=60
help me solve asap
ty!
Answer:
d=-18
Step-by-step explanation:
plz answer only if correct :))
(this is trig.ratios) in
Answer:
39
Step-by-step explanation:
Since you want to find the variable x all you have to do is simple subtraction.
The two numbers (61 and 22). Subtract those numbers and you get 39. Now it wants you to round to the jearest hundredth but there is no hundreds place so we can round to the nearest tenth. Which would be 30! Hope it helped... :)!
bye
Alice's age is 5 years less than 4 times her brother's age. Alice's age is 15 minus her brother's age. How old is Alice?
Answer:
Alice is 6 1/9
Step-by-step explanation:
a is Alice and b is brother
a=4b-5
a=b-15
I prefer to use elimination
a=4b-5
-a=-b15
-3b=10
b=-10/3
a=4(10/3)-5
a=-55/3
HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
NO SOLUTION, cannot be graphedStep-by-step explanation:
brainliest pleaseAnswer: no solution
because that solution cant be graphed
Step-by-step explanation:
PLS help quickest and accurate answer gets brainliest Mrs. Meadows wants to tile a wall to serve as a splashguard above a basin in the basement. She plans ot use equal-sized tiles to cover an area that measures 48 inches by 36 inches. What is the area of the maximum-size square tile Mrs. Meadows can use and not have to cut any of the tiles? Write your answer as inches squared.
Answer
1729 in^2
Step-by-step explanation:
48 in x 36 in= 1728 in^2. A=LxW