Question 9 Answer & Explanation - SAT Algebra

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algebra

Two cars drive on parallel roads. Car A's path is $y = 50x$ . Car B starts 10 miles north. What is Car B's path?

$y = 50x + 10$

$y = 50x - 10$

$y = 60x$

$y = 10x + 50$

Correct Answer: A

Choice A is the correct answer. Parallel means same slope.

Slope: $50$ (Speed/Direction).
Intercept: Starts 10 miles "north" (positive y) $\rightarrow +10$ .
Equation: $y = 50x + 10$ .

💡 Strategic Tip: "North" usually implies positive y-direction.

Choice B is incorrect because south. Choice C is incorrect because different speed. Choice D is incorrect because swapped.

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Linear Functions Set 92

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