Question

4. Identify whether each function is linear or non-linear. Then, evaluate the function for the given value of

Answer 1

$f(x) = x3 + 2x2 + 6 \\ f(3) = (3)3 + 2(3)2 + 6 \\ = 9 + 12 + 6 \\ f(3) = 28 \\ \\ f(x) = 1x \\ f(8) = 1(8) \\ = 8 \\ f(8) = 8$