Exploring Graphing Functions and Function Tables

What is the purpose of the vertical line test?

• To check if a graph represents a function

• To find the slope of a function

• To determine if a graph is a straight line

• To calculate the y-intercept

What is the y-value when x = -1 for the function y = 2x - 3?

• 1

• 3

• -5

• -3

What is the y-value when x = 0 for the function y = 2x - 3?

• -3

• 3

• 0

• 2

What is the y-value when x = 2 for the function y = 2x - 3?

• 5

• 1

• 4

• 2

What is the y-value when x = 4 for the function y = 2x - 3?

• 8

• 5

• 1

• 3

What is the y-value when x = -5 for the function y = x + 4?

• 2

• 0

• 4

• -1

What is the y-value when x = -2 for the function y = x + 4?

• 2

• 0

• 4

• -1

What is the y-value when x = 0 for the function y = x + 4?

• 2

• 0

• 4

• -1

What is the range value when x = -10 for the function y = (3/5)x + 2?

• -4

• 2

• 5

• 0

What is the range value when x = 5 for the function y = (3/5)x + 2?

• 2

• 5

• 4

• 3