Question

Catherine used the two points and the right triangle shown to find the slope of the line Catherine found the slope to be 1/10. Is she correct? Explain using complete sentences.

Answer 1

Catherine is not correct (see the explanation)

Explanation:

The picture of the question in the attached figure

we know that

The formula to calculate the slope between two points is equal to

`m=(y2-y1)/(x2-x1)`

the two points from the graph are

(4,40) and (7,70)

substitute the values in the formula

`m=(70-40)/(7-4)\\m=(30)/(3)\\m=10`

therefore

Catherine is not correct