Question

Find the slope of the line(s)

Answer 1

14. 2

15. -1

16. 0

Explanation:

all work is pictured and shown

Answer 2

14)
`m=2`

15)
`m=-1`

16)
`m=0`

Explanation:

In order to calculate the slope of a line, we can use this formula:

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

The procedure is:

- Choose two points on line.

- Substitute the coordinates into the formula and evaluate.

Then:

14) Point (0,0) and Point (1,2):

Slope:
`m=(2-0)/(1-0)=-2`

15) Point (0,0) and Point (-2,2):

Slope:
`m=(0-2)/(0-(-2))=-1`

16) Since it is an horizontal line, the slope is zero:

`m=0`