10
Answer: BSet 2: Linear Functions (Advanced)
Explanation
PROBLEM
A line has slope 4 and passes through (-1, 2). What is y when x = 3?
A line has slope 4 and passes through (-1, 2). What is y when x = 3?
A.
10
B.✓ Correct
18
C.
14
D.
22
Detailed Explanation
Choice B is the best answer. y - 2 = 4(x + 1). At x = 3: y = 18
Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
C: 14 is incorrect because it does not satisfy the equation.
D: 22 is incorrect because it does not satisfy the equation.
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