Nine times the input minus seven is equal to the output. if the input is -1, what is the output? -16 -2 -72 2

9x-7 =y

9(-1) -7 =y

-16 =y

Choice A

(A) -16 is your answer

Step-by-step explanation:

let input = x, output = y

When x = -1

9(x) - 7 = y   (is your equation)

Plug in -1 for x

9(-1) - 7 = y

Simplify. First, multiply 9 with -1

9(-1) = -9

Next, combine like terms

-9 - 7 = y

-16 = y

(A) -16 is your answer

~So Shines a Good Deed in a Weary World

answer: y = -12x + 108

step-by-step explanation: do (y = m x+b) formula.