Common Core State Standard: 8.F.2 

Grade  8 
Subject  MATH 
Domain  Functions 
Theme  Define, evaluate, and compare functions 
Standard  Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change. 
Reference URL  http://www.corestandards.org/Math/Content/8/F 