Question

Find the distance between points P(2, 2) and Q(7, 4) to the nearest tenth.

Answer 1

The formula of a distance between two points:

`d=√((x_2-x_1)^2+(y_2-y_1)^2)`

We have the points P(2, 2) ans Q(7, 4). Substitute:

`|PQ|=√((7-2)^2+(4-2)^2)=√(5^2+2^2)=√(25+4)=√(29)\approx5.4`

Answer: PQ = 5.4