Answer:

Explanation:
For this example, I used the slope-intercept form,
, where m represents the slope and b represents the y-intercept.
In order to find the equation, we must find the slope and y-intercept.
Finding m
The slope can be found with the formula:
, where the x and y variables represent different x and y values from the given points.
Substituting in values from the points, we get:

Finding b
In order to find the y-intercept, we must substitute the slope back into the original equation:

After this, we must also substitute either of the two points. Both will give the correct answer, but (-3, -1) will be used for this example.

Finding the equation
After this, all that must be done is to substitute the values for b and m back into the original equation.

To check our work, we can substitute in either of the given points. For demonstration purposes, (-7, -9) will be used.
