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5 votes
The map of a biking trail is drawn on a coordinate grid.

The trail starts at P(−3, 2) and goes to Q(1, 2).
It continues from Q to R(1, −1) and then to S(8, −1).

What is the total length (in units) of the biking trail?
11
13
14
16

User Seun Matt
by
8.9k points

2 Answers

5 votes

Answer:

14 units because I got it right in my FLVS exam

Explanation:

User Isitar
by
8.2k points
0 votes

Answer:

Third option is correct. The total length of biking trial is 14 units.

Explanation:

It is given that the trail starts at P(−3, 2) and goes to Q(1, 2). It continues from Q to R(1, −1) and then to S(8, −1).

The distance formula is


d=√((x_2-x_1)^2+(y_2-y_1)^2)

We have to find PQ, QR and RS.


PQ=√((1-(-3))^2+(2-2)^2)=√((1+3)^2)=√(16)=4


QR=√((1-1)^2+(-1-2)^2)=√((-3)^2)=√(9)=3


RS=√((8-1)^2+(-1-(-1))^2)=√((7)^2)=√(49)=7

The total length of h trail is


L=PQ+QR+RS


L=4+3+7


L=14

Therefore total length of biking trial is 14 units.

User Jay Jung
by
8.3k points