Evaluating Functions: Introduction to Function Notation

This video tutorial teaches how to evaluate functions using function notation by substituting specific domain values. It explains the concept of a function as a relation where each X value corresponds to one Y value. The video demonstrates how to determine if a relation is a function using the vertical line test and provides examples of evaluating functions with different domain values. Common misunderstandings about function notation are addressed, emphasizing that F of X does not equal X. The tutorial concludes with a summary of the key points covered.

What is the definition of a function in terms of X and Y values?

How can you determine if a relation is a function using a vertical line test?

Explain the mistake made when substituting values into the function F of X = X + 2.

What is the value of F of 1 for the function F of X = 3X + 2?

How do you evaluate F of X when X is 4 for the function F of X = 3X + 2?

What ordered pair is obtained when F of X equals 17?

Describe the process to isolate X when given the equation 17 = 3 * X + 2.