Set 3: Linear Functions

Explanation

Answer: A

Find the x-intercept of $5x - 2y = 20$ .

$4$

✓ Correct

$-10$

$10$

$-4$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Set $y=0$ . 1. Substitute: $5x = 20$ . 2. Solve: $x = 4$ . Strategic Tip: Cover the y-term. Choice B is incorrect because it is the y-intercept. Choice C is incorrect because it results from an error in the solution process. Choice D is incorrect because sign error.

Key Steps:

•

The correct answer is $4$

Why others are wrong:

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

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

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

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