Question

Two points on a line are (5,8) and (6,9), respectively. What is the slope?

A.2
B.-2
C.1/2
D.1
E.-1

Answer 1

D. 1

Explanation:

Given points are: (5,8) and (6,9)

`\implies x_1=5,\: x_2=6,\: y_1=8,\: y_2=9`

Formula for slope of a line is give as:

`Slope \: of\: line =(y_2-y_1)/(x_2-x_1)`

Plugging in the values of
`x_1,\: x_2\: and\:y_1,\: y_2` in the above formula, we find:

`Slope \: of\: line =(9-8)/(6-5)`

`Slope \: of\: line =(1)/(1)`

`Slope \: of\: line =1`