Question

If the slope of the line that goes through the points (2, 7) and (5, a) is -3, what is the value of a?​

Answer 1

a = -2

Explanation:

I graphed the given point (2,7) and then I used that point and plugged the point and the slope into the point-slope formula, which is (y-y₁)=m(x-x₁). Then, I just looked for where x=5 on the line and it was -2