Question

Help Please!!

A grid shows the positions of a subway stop and your house. The subway stop is located at (–9, 7) and your house is located at (9, –2). What is the distance, to the nearest unit, between your house and the subway stop?
A. 17
B. 30
C. 25
D. 20

Answer 1

Answer:
D. 20

Step-by-step explanation:
To answer this question, we will use the distance formula which is as follows:
distance =
`√((x2-x1)^2 + (y2-y1)^2)`

We are given:
point (-9,7) representing (x1,y1)
point (9,-2) representing (x2,y2)

Substitute with the givens in the above formula to get the distance as follows:
distance =
`√((9--9)^2 + (-2-7)^2)` = 9√5 which is approximately 20 units

Hope this helps :)