Question

Given f(x) = x – 10, what is f(–7)?

A.
–17

B.
–10

C.
–7

D.
–3

Answer 1

easy
put -7 for every x
f(x)=x-10
f(-7)=-7-10
f(-7)=-17

A

Answer 2

Answer: A.
`-17`

Explanation:

Here, the given function is,

`f(x) = - x - 10`

By substituting x = -7

We get,

`f(-7) = -7 - 10`

`\implies f(-7) = - (7+10)`

`\implies f(-7) = -17`

Thus, the value of
`f(-7)` is
`17`.

⇒ Option A is correct.