Question

Find an input that yield an output of -1 rule y=-2x+33

Answer 1

Input (x-value)

Output (y-value)

You need to find the x-value that produces a y-value of -1. Since you know:

y = -1       Use the rule, and substitute/plug this into the equation

y = -2x + 33       Plug in -1 for "y" in the equation since y = -1

-1 = -2x + 33        Subtract 33 on both sides

-1 - 33 = -2x + 33 - 33

-34 = -2x      Divide -2 on both sides to get "x" by itself

$\frac{-34}{-2}=\frac{-2x}{-2}$

17 = x

An input of 17 yields an output of -1