Answer:
[tex]m = \frac{d - b}{c - a} \: where \: c \ne \: a[/tex]
Step-by-step explanation:
We use the slope formula:
[tex]m = \frac{y_2-y_1}{x_2-x_1} [/tex]
The slope or gradient is not very difficult to calculate.
The given points are:
A(a,b) and B(c,d)
We substitute these points into the formula to get:
[tex]m = \frac{d - b}{c - a} \: where \: c \ne \: a[/tex]
Note that this is also the same as:
[tex]m = \frac{b - d}{a- c} \: where \: c \ne \: a[/tex]
