What’s is the constant of proportionality in the equation y=5/4x

Trying to figure out the standard form equation for this graph

Adentist's office and parking lot are on a rectangular piece of land. the area (in square meters) of the land is represented by x2+x? 30. a. write a binomial that represents the width of the land.

Identify the pythagorean triple. a) 3, 5, 7 b) 8, 16, 32 c) 12, 34, 37 d) 20, 21, 28 e) 36, 77, 85