Functions: Define, evaluate, and compare functions.
Algebra and Functions
Resources cannot be aligned to this standard, browse sub-standards to find lessons.
Define a function as a rule that assigns to each input exactly one output. Show that the graph of a function is the set of ordered pairs consisting of an input and the corresponding output. (Function notation is not required for Grade 8.)
Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions).
Interpret the equation 𝑦 = 𝑚x + 𝑏 as defining a linear function, whose graph is a straight line; give examples of functions that are not linear.
Define, evaluate, and compare functions.