Question

What is the slope of the line that passes through the points (a, b) and (c, b)?

a: 0
b: b
c: undefined
d: c - a

Answer 1

A. 0

Explanation:

We must find the slope using the slope formula.

Slope:
`m=(y_2-y_1)/(x_2-x_1)`

We substitute
`x_1=a\\y_1=b` and
`x_2=c\\y_2=b`

`m=(b-b)/(c-a)=(0)/(c-a)=0`

Slope is 0.