Question

Which expression can be used to determine the slope of the line that passes through the points (–7, 3) and (1, –9)?

Answer 1

-9-3/1-(-7)

Explanation:

Answer 2

The slope of given line = -3/2

Explanation:

Points to remember

slope of the line with end points (x1, y1) and (x2, y2) is given by,

Slope = (y2 - y1)/(x2 - x1)

To find the slope of the line

Here (x1, y1) = (-7, 3) and (x2, y2) = (1, -9)

Slope = (y2 - y1)/(x2 - x1)

= (-9 - 3)/(1 - -7)

= (-12)/8

= -3/2

Therefore the slope of given line = -3/2