Question

What is the slope of the line that goes through `(1,2)` and `(-3,2)`?

Answer 1

`0`

Explanation:

To calculate the slope of a line when given two points is simple. Take one y-coordinate and subtract it from the other y-coordinate. then divide by one x-coordinate minus the other x-coordinate.
`(y_2-y_1)/(x_2-x_1)`
The / indicates a fraction bar.
So in this case, `(2-2)/(1 - (-3))`
Which turns into, `0/4`
And `0` divided by anything equals zero
So the slope is `0`