5
Answer: CSet 4: Linear Functions (Intermediate)
Explanation
PROBLEM
What is the equation of a line through (0, -2) with slope -3?
What is the equation of a line through (0, -2) with slope -3?
A.
y = -3x + 2
B.
y = -2x - 3
C.✓ Correct
y = -3x - 2
D.
y = 3x - 2
Detailed Explanation
Choice C is the best answer. y = mx + b = -3x - 2
Why others are wrong:
A: y = -3x + 2 is incorrect because it does not satisfy the equation.
B: y = -2x - 3 is incorrect because it does not satisfy the equation.
D: y = 3x - 2 is incorrect because it does not satisfy the equation.