Question

URGENT!
Evaluate f(x)=-2x-5 for x=3

Answer 1

Evaluating means replacing x=3 in f(x)

Answer 2

let x = 3
f(3) = -2(3)-5 = ?

Answer 3

f(x)=-2x-5 for x=3
pulg the value x=3
=-2(3)-5
=-6-5
=-11

Answer 4

So, if
\[f(\color{red}x)=-2\color{red}x-5\]
then
\[f(\color{red}3)=-2\cdot \color{red}3-5\]

Answer 5

\[f(\color{red}x)=-2 \cdot \color{red}3 -5=-6-5=-11\]

Answer 6

I got -11 too
f(3) = -6-5 = -11

Answer 7

Thanks you guys!!