Question

If the equation of a function is y = x2 – 5, what is the output when the input is -1?

A) -6
B) -5
C) -4
D) -3

Answer 1

C

Explanation:

Answer 2

The answer is C) -4.

Substitute -1 for x in your function and evaluate:
y = x2 – 5
y = (-1)^2 - 5
y = 1 - 5
y = -4

Your output is -4, when the input value is -1.