Determine whether the following graph represents a function

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?