The points (4, -6) and (r, 6) lie on a line with slope 3. Find the missing coordinate r.

r = 8

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to 3

m =

with (x₁, y₁ ) = (4, - 6) and (x₂, y₂ ) = (r, 6)

m = = , then

= 3 ( multiply both sides by (r - 4))

12 = 3(r - 4) ← divide both sides by 3

4 = r - 4 ( add 4 to both sides )

8 = r

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

what is the rest of the question? ?