Answer:
1. y = -3/2 x +11
2. y = -2 x -7
Step-by-step explanation:
Slope intercept form is y = mx+b
1. A (8, –1) and B (–4, 17)
First we need to find the slope
m = (y2-y1)/(x2-x1)
m = (17--1)/(-4-8)
=(17+1)/(-4-8)
=18/-12
Dividing top and bottom by 6
=-3/2
Given the slope
y = -3/2 x+b
Using the point (8,1) we can find b
-1 = -3/2(8) +b
-1 =-12 +b
Add 12 to each side
-1+12 = -12+12 +b
11 =b
The equation is y = -3/2 x +11
2. C (–19, 31) and D (1, –9)
First we need to find the slope
m = (y2-y1)/(x2-x1)
m = (-9-31)/(1--19)
=(-40)/(1+19)
= -40/20
=-2
Given the slope
y = -2 x+b
Using the point (1,-9) we can find b
-9 = -2(1) +b
-9 =-2 +b
Add 2 to each side
-9+2 = -2+2 +b
-7 =b
The equation is y = -2 x -7
Answer:
f = x * 5
I dont know how to explain it, but if it increases by 1 and adds 5, its multiplying by 5
Answer:
K' (6,-4)
L' (0,-7)
M' (6,-10)
N' (8,-7)
Step-by-step explanation:
As we are rotating 180 degrees, We just need to change the sign of each of the points.
In order to match each of the pairs you need to divide the numerator by the denominator to make it into a decimal.
Below are the pairs:
21/25 = 84%
13/20 = 65%
2/5 = 40%
3/4 = 75%
3/5 = 60%
