Question

You are given the function C(x)=−4x2+4x+3 Find C(−1). Provide your answer below: C(−1)=

Answer 1

C(-1)= -5

Explanation:

This question asks us to find C(-1). We know what C(x) is, it is:

`C(x)=-4x^(2) +4x+3`

Therefore, we must substitute -1 in for every x to find C(-1).

`C(-1)=-4(-1)^(2) +4(-1)+3`

Now, solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

First, evaluate the exponent.

-1^2=-1*-1=1

`C(-1)=-4(1) +4(-1)+3`

Next, multiply -4 and 1.

`C(-1)=-4+4(-1)+3`

Multiply 4 and -1 again.

`C(-1)=-4+ -4 + 3`

Add the numbers together.

`C(-1)=-8+3`

`C(-1)=-5`

Answer 2

Hey there! :)

Answer:

C(-1) = -5.

Explanation:

C(x) = -4x² + 4x + 3

Plug in -1 for x to solve for C(-1):

C(-1) = -4(-1)² + 4(-1) + 3

Simplify:

C(-1) = -4 + (-4) + 3

C(-1) = -5