Question

3. Given f(x) = 12x + 15. describe in complete sentences how you can evaluate f(4).

Answer 1

Use the substitution method

f(x) = 12x + 15

f(4)=12(4)+15

Multiply first then because of using PEMDAS.

P= parenthesis

E= exponents

M= multiplication

A= addition

S= subtraction

48+15

=63

Answer: f(4)=63