Question

Evaluate the function when x = -5.
f(x) = 2x + 7
answer:

Answer 1

-3

Explanation:

Evaluate 2 x + 7 where x = -5:

2 x + 7 = 7 - 5×2

Hint: | Multiply 2 and -5 together.

2 (-5) = -10:

-10 + 7

Hint: | Subtract 10 from 7.

7 - 10 = -3:

Answer: -3

Answer 2

Explanation:

Replace x with -5

2(-5)+7

-10+7

-3