Module 6: Functions

15. Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• No, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because each x-value has only one y-value paired with it.

Is this table a function or not a function?

• Function

• Not a Function

• Can't tell.

Determine whether the relationship is a function. Complete the explanation. (2, 6), (1, 2), (−4, 5), (2, 3), (9, 9)

• Since each input value is paired with only one output value, the relationship is a function.

• Since each input value is paired with more than one

  output value, the relationship is a function.

• Since at least on input value is paired with more than one

  output value, the relationship is not a function.

Determine whether the situation is linear or nonlinear, and proportional or nonproportional. Joanna is paid $14 per hour.

• The situation is linear and nonproportional.

• The situation is nonlinear and nonproportional.

• The situation is nonlinear and proportional.

• The situation is linear and proportional.

Determine whether the situation is linear or nonlinear, and proportional or nonproportional. Alberto started out bench pressing 60 pounds. He then added 10 pounds every week.

• The situation is linear and proportional.

• The situation is nonlinear and proportional.

• The situation is linear and nonproportional.

• The situation is nonlinear and nonproportional.

Which function is changing more quickly?

• Function 1

• Function 2

Which pizza place has the best starting salary?

• Bombino's

• Little Squeezers

• Pizza Tent

• Mama Joannes

In a lab environment, colonies of bacteria follow a predictable pattern of growth. The graph shows this growth over time. Which phase shows the fastest growth and which phase shows decreasing growth?

• Phase 1

• Phase 2

• Phase 3

• Phase 4