Question 433436
find the slope, if it exist, of the line containing the pair of points (9,2) and (10,-7)
:
The slope formula: m = {{{((y2-y1))/((x2-x1))}}}
In this equation
x1=9, y1=2
x2=10, y2=-7
:
So we have: m = {{{((-7-2))/((10-9))}}} = {{{(-9)/1}}} = -9 is the slope