Question

What is the equation in point−slope form of the line passing through (1, 2) and (2, 5)?

(5 points)

A.) (y − 2) = −3(x − 1)

B.) (y − 2) = 3(x − 1)

C.) (y − 1) = −3(x − 2)

D.) (y + 2) = 3(x + 1)

Please make sure the answer is correct

Answer 1

B

Explanation:

First, find the slope by using change in y divided by change in x.

Change in y = 5 - 2 = 3

Change in x = 2 - 1 = 1

This means that the slope is 3/1 = 3.

Then, you put it in the point-slope form so:

(y - 2) = 3(x - 1)