Describe the process you used to find the equation of a line through two points. Have you learned any tricks or shortcuts when doing this? Explain
if you have.

Explanation at the bottom

Step-by-step explanation:

To find the slope with the 2 points use this ---> Ex: Points (9, 3) (6, 12) --> write it this way = = -3 so -3 would be the slope of that line.

Then to find the y- intercept use the slope and the numbers from one of the points like this ---->   y = mx + b we are looking for b.  

(plugging in the first point)  (using the point (9,3))

3 = -3(9) + b

3 = -27 + b (add 27 on both sides)

30 = b (that's your y- intercept)

(Full equation is)  

y = -3x + 30

If you need further explanation just comment!!