Set 7: Linear Functions (Advanced)

Explanation

Answer: A

Which of the following lines has a slope of 0?

$y = 5$

✓ Correct

$x = 5$

$y = 5x$

$y = x + 5$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Identify the horizontal line. 1. Form: $y = 5$ can be written as $y = 0 x + 5$ . 2. Slope: The coefficient of $x$ is 0. 3. Visual: This is a horizontal line. Strategic Tip: "Y equals number" means zero slope. "X equals number" means undefined slope. Choice B is incorrect because it is vertical (undefined slope). Choice C is incorrect because slope is 5. Choice D is incorrect because slope is 1.

Key Steps:

•

The correct answer is $y = 5$

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.

← Previous Next →

🎯 Keep Practicing!

Master all sections for your best SAT score

📚Reading & Writing→📖Vocabulary→