Nine times the input minus seven is equal to the output. If the input is - 1, what is the output?

-16

-2

-72

2

(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

9x-7 = y

9 (-1) - 7 = y

-16 = y

Choice A