PSAT Math Multiple-Choice Question 14: Answer and Explanation

Question: 14

If , then which of the following represents an equivalent equation for y, in terms of x?

• A.
• B.
• C.
• D.

Correct Answer: B

Explanation:

B

The question asks for an equivalent equation for y. To find the equivalent equation, isolate y on one side of the equation. Start by cross-multiplying to get 7y = (x + 3)(x + 4). Use FOIL on the right side to get 7y = x² + 7x + 12. Divide both sides by 7 to get . The correct answer is (B).