Question

1. $f(x)=3x+5$; find $f(-3)$

Explanation:

Step1: Substitute $x=-3$ into $f(x)$

$f(-3)=3(-3)+5$

Step2: Calculate the product first

$3(-3) = -9$

Step3: Compute the final sum

$-9 + 5 = -4$

Answer:

$-4$