Question

F(x)=6x^2-x
Find f(-3)

Answer 1

327

Explanation:

You will plug in the -3 for x. 6 times -3 equals -18. -18 squared equals 324. 324 minus -3 equals 327.

Answer 2

Answer:
`f(-3)=57`

Explanation:

Given the following function:

`f(x)=6x^2-x`

To find
`f(-3)` you need to substitute the x value
`x=-3` into the function
`f(x)` given.

Therefore, when the input value (value of the variable "x") is -3, then the ouput value is:

`x=-3\\\\f(-3)=6(-3)^2-(-3)`

Remember the multplication of signs:

`(+)(+)=+\\(-)(-)=+\\(-)(+)=-`

Then:

`f(-3)=57`