How do you find the slope for (3, -7) (9,-3)?

2 Answers
Jul 19, 2018

The slope is #2/3#.

Explanation:

To find the slope given two points, we use the formula #"rise"/"run"#, or #(y_2-y_1)/(x_2-x_1)#.

Plug in the given points into the formula:
#(-3-(-7))/(9-3) = 4/6 = 2/3#

Therefore, the slope is #2/3#.

Hope this helps!

Jul 19, 2018

#2/3#

Explanation:

To find the slope for two points, we can use the formula

#(Deltay)/(Deltax)#

Where the Greek letter Delta (#Delta#) is shorthand for "change in".

We just see how much our #y# changes, and divide by how much our #x# changes.

We go from #y=-7# to #y=-3#, so this represents a #Deltay# of #4#.

We go from #x=3# to #x=9#, which represents a #Deltax# of #6#.

Dividing the two, we get

#4/6=2/3#

Therefore, our slope is #2/3#.

Hope this helps!