The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−6, 3) and goes to Q(3, 3). It goes from Q to R(3, −4) and then to S(6, −4). What is the total length (in units) of the biking trail?

9

12

16

19

Question

The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−6, 3) and goes to Q(3, 3). It goes from Q to R(3, −4) and then to S(6, −4). What is the total length (in units) of the biking trail? 

 9 

12 

16 

19

anonymous · Answer

@LynFran @BioHazard9064

anonymous · Answer

@Robert136

anonymous · Answer

Ok. It's 19 but I am gonna show you why.

anonymous · Answer

Drawing function is not working so I am just going to explain it in words.

anonymous · Answer

First note that when moving from (3,-6) to (3,3) there is already a displacement by units of 9

anonymous · Answer

Then it goes down to -4 which adds 7 to 9, making it 16. Then another move from 3 to 6 makes it 16+3=19. hope this helps.