Question

Hello! Please see the picture to find the question, thank you! (Question #9)

Answer 1

We are given that

`f(x)=-8x^2-3x+4`

We want to find

`f(-3)`

Solution

From

`f(x)=-8x^2-3x+4`

To find f(-3), we only need to put x = -3

`\begin{gathered} f(x)=-8x^2-3x+4 \\ \text{put x = -3} \\ f(x)=-8x^2-3x+4 \\ f(-3)=-8(-3)^2-3(-3)+4_{} \\ f(-3)=-8(9)+9+4 \\ f(-3)=-72+13 \\ f(-3)=-59 \end{gathered}`

Therefore, f(-3) = -59