Set 6: Linear Functions (Intermediate)

Explanation

Answer: A

Find the x-intercept of the line $y = \frac{1}{2}x - 3$ .

$6$

✓ Correct

$-3$

$3$

$-6$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Set $y=0$ . 1. Substitute: $0= \frac{1}{2}x - 3$ . 2. Add 3: $3= \frac{1}{2}x$ . 3. Multiply by 2: $6= x$ . Strategic Tip: To clear the fraction, multiply the entire equation by the denominator. Choice B is incorrect because it is the y-intercept. Choice C is incorrect because it misses the multiplication step. Choice D is incorrect because of sign error.

Key Steps:

•

The correct answer is $6$

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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