Question

Given A(13,-1) and B(8,-3).

What is the slope of line AB?
A) 1/5
B) 2/5
C) -1/5
D) -2/5

Answer 1

The slope of line AB is 2/5 (option B).

Step-by-step explanation:

The slope of a line passing through two points can be found using the formula:

m = (y2 - y1) / (x2 - x1)

Given points A(13,-1) and B(8,-3), the values for x1, y1, x2, and y2 are:

x1 = 13, y1 = -1, x2 = 8, y2 = -3

Using the formula, we can calculate the slope:

m = (-3 - (-1)) / (8 - 13)

m = (-3 + 1) / (-5)

m = -2 / (-5)

m = 2/5

Therefore, the slope of line AB is 2/5 (option B).