Question

Johnny thinks that the slope of the line through (5,10) and (4,4) is -1/6. Is he correct? If he is explain why. If he’s not, provide the correct answer and explain what he did wrong.

Answer 1

Johnny is incorrect because the slope is actually 6.

Explanation:

To find the slope: m =
`(y2 - y1)/(x2 - x1)`

Step 1: Plug in the points

m =
`(4 - 10)/(4 - 5)`

m =
`(-6)/(-1)`

m = 6

Answer: Johnny is incorrect because the slope is actually 6.