A line with coordinates (−15,5) and (−10,−5) has a slope of:?

Question

Step by step answer please.

Answer 1

Slope of the line is given by m =(y2 - y1)/(x2-x1)
m = (-5-5))/(-10-(-15))
m = (-10) / (5)
m = -2 / 1
m = -2

Answer 2

Slope =change in y/ change in x = (-5-5))/(-10-(-15))

=(-10) / (5)

= -2 / 1

= -2