Question

How do you find the slope given (7,-2) (7,9)?

Answer 1

`pi/2`

Explanation:

`x = 7` , for all `y in RR =>` vertical line

Answer 2

The slope of the line is `11`.

Explanation:

Slope is the change in y over the change in x.

`(Deltay)/(Deltax)` OR `(y_2-y_1)/(x_2-x_1)` where the x and y values correspond with the coordinates.

Since (7,9) is the second coordinate, we use that as `x_2` and `y_2` and the other as `x_1` and `y_1` although both can be used interchangeably, as long as they are in the correct pairs.

`(9-(-2))/(7-7)`

`slope=11/1`

The slope of the line is `11`.