what is the relationship between the lines?

CaraBents

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1
y = 2x -7 and y = -1/2x -2 ?

2. use synthetic solutions to find d(-2) for 9x) = x^4 - 4x^3 - 4x + 6

3. write a function for the information below
days worked 1 payed 50
days worked 2 payed 100
days worked 3 payed 150
days worked 4 payed 200

what is the solution to the system containing these equations ?

x+y = -8
-3x+2y = 9
 
1. perpendicular

3. y=50x

4.
y=-8-x
-3x+2[-8-x]=9
-3x-16-2x=9
-5x=25
x=-5

x+y=-8
-5+y=-8
y=-3
 
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