Question

What is the slope of the line that passes through the points

(
9
,
5
)
(9,5) and
(
21
,
1
)
?
(21,1)?

Answer 1

-1/3

Explanation:

Formula for slope is y²- y¹/x²-x¹. Plug in the numbers and you get 1-5/21-9. Do the math and you get -4/12 or -2/6 or -1/3