Question

If f(x) = −2 + 8, what is f(−1.8)?
4
6
10
12

Answer 1

f(x) = -2 + 8

f(x) = 6

No matter what x is, it does not change the value of f(x).

f(-1,8) = 6

Answer: 6

Answer 2

Option B, 6

Explanation:

If f(x) = -2 + 8 then we have to calculate the value of f(-1.8)

Since f(x) = -2 + 8 = 6 is a constant.

Then for any value of x, f(x) will remain constant

therefore, f(-1.8) = 6

Option B, 6 is the answer.