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Have you not even tried these? If you have please show us what you have tried. That will help us see what you do undertand and what will help you.

For the first one you are told that the function is linear so you know it can be written y= ax+ b for constants, a and b, that you want to determine.

You are told that, when x= -2, y= 8, so 8= a(-2)+ b.
You are told that, when x= 3, y= 1, so 1= a(3)= b.

Solve the two equations
-2a+ b= 8
3a+ b= 1

for a and b.
 
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