Question

The table represents the function 7 = 5x- Output ) Input (3) -2 -18 8 x 1 2 2 12 8 2 2. What is the input when the output is 12 A. 4 B. 5

Answer 1

$y_{-2}=5\cdot(-2)-8=-10-8=-18$$y=5x-8$$12=5x-8$$12+8=5x$$20=5x$$x=\frac{20}{5}$$x=4$