Question

What is the slope of a trend line that passes through the points (5, 80) and (7, 65)?

a) 2/15
b) - 15/2
c) 15/2
d) - 2/15

Answer 1

The result is B) -15/2 .

Explanation:

-To find the slope, you need the slope formula:

`m = (y_(2) - y_(1))/( x_(2) - x_(1))`

-Use those two points (5, 80) and (7, 65) for the formula:

`m = (65-80)/(7-5)`

-Then, you solve that formula:

`m = (65-80)/(7-5)`

`m =- (15)/(2)`

So, the answer for the slope is
`-(15)/(2)` .