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QuizMultiple Choice

Exploring Slope — Quiz

Question 1 • Mathematics 8

A line passes through the point open paren negative 7 comma 5 close paren and has a slope of 1 half Which is another point that the line passes through?

Answer
A
open paren negative 9 comma 13 close paren
B
open paren negative 13 comma 9 close paren
C
open paren 13 comma 9 close paren
D
open paren 9 comma 13 close paren

Explanation

Use the slope formula: change in y divided by change in x. From (-7, 5) to (9, 13), the change in y is 13 − 5 = 8 and the change in x is 9 − (−7) = 16. The slope is 8/16 = 1/2, so (9, 13), choice D, lies on the line.

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