Question

=Given f(x) = -0.4x – 10, what is f(-12)? If it does not exist,enter DNE.

Answer 1

We have the function:

`f\mleft(x\mright)=-0.4x-10`

And we need to find its value when x = -12. So, replacing x with -12, we obtain:

`f(-12)=-0.4(-12)-10=4.8-10=-5.2`

Notice that the product of two negative numbers is a positive number.

Therefore, the answer is -5.2.