Understanding Function Notation: Graphical and Tabular Interpretation

The video tutorial introduces function notation, explaining how to interpret data graphically and in tables. It covers the concepts of domain and range, and how to determine if a relation is a function. The tutorial uses examples to illustrate these concepts, including a real-world application where Molly needs to calculate how many hours she must work to afford an iPad. The video emphasizes the importance of function notation and graphing, providing a comprehensive understanding of functions and their applications.

What is a function in terms of x and y values?

• A relation where each x value corresponds to multiple y values

• A relation where each x value corresponds to exactly one y value

• A relation where each y value corresponds to multiple x values

• A relation where each y value corresponds to exactly one x value

How can you determine if a relation is a function using a coordinate plane?

• By checking if any horizontal line passes through more than one point

• By checking if any vertical line passes through more than one point

• By checking if any diagonal line passes through more than one point

• By checking if any line passes through exactly one point

What does the notation f(x) represent in function notation?

• The y values of a function

• The x values of a function

• The domain of a function

• The range of a function

In the function f(x) = x + 1, what is the value of f(2)?

• 1

• 2

• 4

• 3

How much does Molly earn per hour?

• $20

• $16

• $10

• $25

What is the function that represents the money Molly earns?

• f(x) = 25x

• f(x) = 16x

• f(x) = 20x

• f(x) = 10x

How many hours does Molly need to work to earn $400?

• 20 hours

• 22 hours

• 30 hours

• 25 hours