Question

Given the function f(x) = −2x2 + 4x − 7, find f(−4). −55 −7 9 25

Answer 1

is -55 I just took the test 

Answer 2

Option (a) is correct.

The value of function
`f(x) = -2x^2 + 4x- 7` at x = -4 is -55

Explanation:

Given :
`f(x) = -2x^2 + 4x- 7`

We have to find the value at f(-4) and choose the correct option from the given options.

Consider the given function
`f(x) = -2x^2 + 4x- 7`

Since, we have to find the value of f(-4) that is value of f(x) at x = -4

Substitute, value of x = -4 in given function, we have,

`f(-4) = -2(-4)^2 + 4(-4)- 7`

Simplify, we have,

`f(-4) = -55`

Thus, the value of function
`f(x) = -2x^2 + 4x- 7` at x = -4 is -55

Option (a) is correct.