Set 16: Linear Functions (Intermediate)

Explanation

Answer: A

Which equation represents a line with slope 1 passing through $(0, -1)$ ?

$y = x - 1$

✓ Correct

$y = x + 1$

$y = -x - 1$

$y = -x + 1$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Slope-intercept form. 1. Slope: $m = 1$ . 2. Intercept: $b = -1$ . 3. Equation: $y = 1 x - 1 \rightarrow y = x - 1$ . Strategic Tip: Direct substitution. Choice B is incorrect because sign error. Choice C is incorrect because slope error. Choice D is incorrect because slope error.

Key Steps:

•

The correct answer is $y = x - 1$

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→