A runner ran 2/3 of a race in `21` minutes. They ran the entire race at a constant speed. Is the relationship between time and distance proportional?

What point is the projection of q on a) r b) s c) t

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

Which of the functions below could have created this graph?