Question

Point P has coordinates (4, 9), and point Q has coordinates (8, 1). To the nearest unit, what is the distance between the two points? You may use the coordinate grid to help you answer the question.

6 units
7 units
8 units
9 units

Answer 1

Answer:the answer is 9 because the height of the triangle is 8^2 (64) and the length is 4^2 (16) add those together and that is 80 then you need to square it which is 8.9 the to the nearest unit which is 9.

and I got it right on my assignment

Answer 2

I hope the workings below help:

Explanation:

`P(4,9)\\Q(8,1)\\\\d=√(\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2)\\\\d=√(\left(8-4\right)^2+\left(1-9\right)^2)\\\\Simplify\\\\d =4√(5)\\\\d =8.9`