Set 2: Linear Functions (Advanced)

**Choice C is the best answer.** 40000 + 3000y = 55000. y = 5

Explanation

Answer: C

PROBLEM

A salary model is S(y) = 40000 + 3000y for y years. After how many years is salary 55000?

A.

3

B.

4

C.

5

✓ Correct

D.

6

Detailed Explanation

Choice C is the best answer. 40000 + 3000y = 55000. y = 5

Why others are wrong:

A: 3 is incorrect because it does not satisfy the equation.

B: 4 is incorrect because it does not satisfy the equation.

D: 6 is incorrect because it does not satisfy the equation.