Answer:
Step-by-step explanation:
1) First, find the slope between these 2 points.
(1, -3)
(-3, 1)
The change between the y-values is 4.
The change between the x-values is -4.
Slope is rise over run, and this is a rise of 4 and a run of -4, so the slope is -1.
If you just wanted to use the slope formula, you could do that too:
2) Second, now you can use the slope to calculate the y-intercept.
Pick whichever point you want, and plug it into the equation along with the slope and solve for b.
(1, -3) = (x, y)
The y-intercept is -2.
3) Finally, you can wire the equation in slope-intercept form.
where m is the slope and b is the y-intercept.
Plug in the values we found and you're done: