Determine whether the points A(-2, 9), B(4, -1), and C(7, -6) lie on a straight line.
A) no
B) yes

Name: Determine whether the points A(-2, 9), B(4, -1), and C(7, -6) lie on a straight line. A) no B) yes
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Question

Quizplus · Accepted Answer

We can use the slope formula to determine if the points are collinear. The slope between A and B is (−1−9)/(4+2) = −10/6 = −5/3. The slope between B and C is (−6−(−1))/(7−4) = −5/3. Since the slopes are equal, the points are collinear. Therefore, the correct answer is B.

Determine Whether the Points A(-2, 9), B(4, -1), and C(7