Find the slop of the line through each pair of points?

Question

1.)       (7,-5), (-9,16)

 

 

 

2.)   (9,14), (3,-5)

Answer 1

To find the slope of a line "m", use the formula....

 

m=(y₂-y₁)/(x₂-x₁).....formula for slope of a line.

 

Substitute the points (x,y) into the formula and simplify. 

For example, using point (-9,16) in #1 above, y₂=16, 

x₂=-9, and so on.  It makes no difference which point you 

assign first or second.  Try reversing the point assignment 

and recalculate each slope.