Question

Evaluate the function: f(n)=n^2 + 3n; find f(-2)

Answer 1

f(-2) = -2

Explanation:

Step 1: Substitute -2 for the variable n.

f(-2) = (-2)^2 + 3(-2)

Step 2: Simplify the expression.

f(-2) = 4 - 6

Step 3: Evaluate the expression.

f(-2) = -2