Why can you use the constant of proportionality with any representation?

Find the equation using the point (4,8)

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Describe how to translate the graph of y=/x to obtain the graph of y=/x+5