9
QuizMultiple Choice

Writing Linear Functions — Quiz

Question 9 • Mathematics 8

What is the point-slope form of a line that has a slope of 3 and passes through point open paren 1 comma 4 close paren ?

Answer
A
1 minus y sub 1 is equal to 3 times open paren 4 minus x sub 1 close paren
B
y minus 4 is equal to 3 times open paren x minus 1 close paren
C
y sub 1 minus 4 is equal to 3 times open paren 1 minus x sub 1 close paren
D
1 minus y is equal to 3 times open paren x minus 4 close paren

Explanation

Point-slope form is y − y₁ = m(x − x₁). Using the slope m = 3 and the point (1, 4) gives y − 4 = 3(x − 1). This matches choice B.

AI-written and checked against the verified answer.

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