Unsure how to write equation

Question

Use your graphing calculator to help you complete each part. 

A function multiplies the input by -3 then subtracts 2 to obtain the output. 

1) Write an equation that matches the function description. Use x for the input variable and y for the output variable. 

Answer 1

We are going to multiply x by -3, and then subtract 2 from that quantity, and set that whole thing equal to y, giving us:

y = -3x -2

Hope this helps, let me know if you need more help!