Question

Find the value of f(-3) for th function below f(x)= 2x + 10

Answer 1

4

Explanation:

f(-3)=2(-3)+10

=-6+10

=4

Answer 2

Solution,

f(x) = 2x+10 .....(1)

Put x = -3 in equation (1),

f(-3) = 2(-3)+10 = -6+10 = 4

Therefore, f(-3) = 4.