Question

On a coordinate grid, the coordinates of vertices P and Q for Polygon PQRS are P(1, 2) and Q(−4, 2). What is the length of Side PQ of the polygon?

Answer 1

5

Explanation:

I took the test

Answer 2

We need to use the distance formula here

`d = √((x_2 - x_1)^2+(y_2-y_1)^2)`
Now, substitute in the points (1, 2) and (-4, 2)

`d = √((-4-1)^2 + (2-2)^2)`
Simplify

`d = √((-5)^2 + 0^2)`

`d = √(25)`
d = 5