Answer:
r = 1/2
Explanation:
To find the slope, we use the formula m = (y₂ - y₁) / (x₂ - x₁). Now, to find the missing point, we just need to substitute the slope and the points back into the equation and solve it.
m = (y₂ - y₁) / (x₂ - x₁)
3/4 = 0.75
0.75 = (r - 5) / (-3 - 3)
0.75 = (r - 5) / (-6)
Multiply by -6 on both sides.
-4.5 = r - 5
r = 0.5
So, r = 1/2