Q = (-4, 6)
R = (8, 6)
You can work out the distance between the points by doing the following formula:
√(x₂ - x₁)² + (y₂ - y₁)²
Factor in our points:
√(8 - -4)² + (6 - 6)²
Solve the brackets (remember a negative and a negative make a positive):
√(12)² + (0)²
= √144 + 0
= √144
Solve this expression to get your final answer of the distance between two points:
√144 = 12
I hope this helps. If it does then a Thanks or a Brainliest would mean a lot! :)
