Set 12: Linear Functions (Advanced)

Explanation

Answer: A

Write the equation of the line passing through the origin with slope 4.

$y = 4x$

✓ Correct

$y = x + 4$

$y = 4$

$x = 4$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Origin intercept. 1. Intercept: Origin $\rightarrow b = 0$ . 2. Slope: $m = 4$ . 3. Equation: $y = 4 x$ . Strategic Tip: Direct variation. Choice B is incorrect because intercept is 4. Choice C is incorrect because slope is 0. Choice D is incorrect because vertical.

Key Steps:

•

The correct answer is $y = 4x$

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.

🎯 Keep Practicing!

Master all sections for your best SAT score

📚Reading & Writing→📖Vocabulary→