Set 4: Linear Equations

Explanation

Answer: D

A rental car costs $ $50plus \$ 0.20 per mile. Which equation represents the cost $$C $for$ m$ miles?

C = 50m - 0.20

C = 0.20m - 50

C = 50m + 0.20

C = 0.20m + 50

✓ Correct

Detailed Explanation

Choice D is correct. Choice A is the correct answer. 1. Fixed Cost: 50 (Intercept). 2. Variable Cost: 0.20 per mile (Slope). 3. Equation: $C = 0.20 m + 50$ . Choice C is incorrect because swaps slope and intercept. Choice D is incorrect because sign error. Choice C is incorrect because swaps and sign error.

Key Steps:

•

The correct answer is C = 0.20m + 50

Why others are wrong:

A: Choice A is incorrect and may result from a calculation error.

B: Choice B is incorrect and may result from a calculation error.

C: Choice C is incorrect and may result from a calculation error.

← Previous Next →

🎯 Keep Practicing!

Master all sections for your best SAT score

📚Reading & Writing→📖Vocabulary→