Slope is equal to the change in
y
over the change in
x
, or rise over run.
m = change in y / change in x
The change in
x
is equal to the difference in x-coordinates (also called run), and the change in
y
is equal to the difference in y-coordinates (also called rise).
m = y^2 - y^1 / x^2 x^1
Substitute in the values of
x
and
y
into the equation to find the slope.
m
=
3
−
(
−
6
)
8
−
(
−
15
)
Simplify.
Simplify the numerator.
Tap for more steps...
m
=
9
8
−
(
−
15
)
Simplify the denominator.
Multiply
−
1
by
−
15
.
m
=
9
8
+
15
Add
8
and
15
.
m
=
9/23
