Question

Find the slope of the line that passes through (7, -1) and (15,9)

Answer 1

5/ 4

Explanation:

slope of a line is the rate of change of y co-ordinates with respect to the change in x co-ordinates.

therefore,

`slope = (9 - (-1)/(15-7) ) \\ = (10)/(8) \\ = (5)/(4)`

as we were given 2 points the rate of change of x and y co-ordinates will be equal to the difference between the values of each for the two points.

Answer 2

5/4

Explanation:

slope = rise/run

slope=y2-y1/x2-x1

slope=9-(-1)/15-7=10/8=5/4

So the answer is 5/4.