4
AssignmentMultiple Choice

Writing Linear Functions

Question 4 • GA-8th Grade Mathematics

What is the point-slope form of a line that has a slope of 5 and passes through the point (3, –4)?

Answer
A
y – 3 = 5[x – (–4)]
B
–4 – y1 = 5(3 – x1)
C
y – (–4) = 3(x – 5)
D
y – (–4) = 5(x – 3)

Explanation

The point-slope form is y − y₁ = m(x − x₁), where m is the slope and (x₁, y₁) is the point. Substituting m = 5 and (x₁, y₁) = (3, −4) gives y − (−4) = 5(x − 3), which is choice D.

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