Question

What is the slope of the line that passes through the points (9, 5) and (21, -5)? Write your answer in simplest form.

Answer 1

-5/6

Explanation:

1. Label X1 AND Y1 and X2 AND Y2 (9(x1),5(x2)) (21(x2),-5(y2))

2. Use this formula
`(y2-y1)/(x2-x1)`=slope

3. Plug the numbers into the formula
`(-5-5)/(21-9)`
`= - (10)/(12)`

4. Find the simplest form.

`slope= - (5)/(6)`