Free preview
Get ready for limits and continuity
Evaluating functions
▶ What is a function?
Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.
▶ Worked example: Evaluating functions from equation
Learn how to evaluate f(x)=49-x² at x=5.
▶ Worked example: Evaluating functions from graph
Evaluating a function at x=-1 using the graph of that function.
▶ Evaluating discrete functions
Given the graph of a discrete function, Sal shows how to evaluate the function for a few different values.
▶ Worked example: evaluating expressions with function notation
Evaluating -2⋅f(-6)+g(1) given the graphs of f and g.
Enjoying the free preview?
Sign up free
Go Pro
Lessons after number 3 are reserved for Pro members — unlock the full course and every other one.