Set 4: Function Notation (Beginner)

**Choice C is the best answer.** f(10) = 1(10) + 9 = 10 + 9 = 19

Explanation

Answer: C

PROBLEM

If f(x) = 1x + 9, find f(10).

✓ Correct

Detailed Explanation

Choice C is the best answer. f(10) = 1(10) + 9 = 10 + 9 = 19

Why others are wrong:

A: 17 is incorrect because it does not satisfy the equation.

B: 21 is incorrect because it does not satisfy the equation.

D: 22 is incorrect because it does not satisfy the equation.