Quantities and Relationships of Functions

Is this mapping a function or not a function? 

• Function

• Not a Function

The graph below represents y, the cost in dollars of x pounds of salad at a salad bar. What is the unit rate for the cost of a salad at the salad bar?

• $.50 per pound

• $1.00 per pound

• $2.00 per pound

• $4.00 per pound

Which of the following representations shows y as a function of x?

• 
• 
• 
• 

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

• A

• B

• C

• D

Choose all of the information that is true about the graph shown above.

• The graph is increasing between the interval of ( −∞, −2.55) , (0, 2.55)

• The graph is decreasing between the interval of ( −∞, −2.55) , (0, 2.55)

• The roots of the function are at -3,-2, 2, 3

• The function is an even function

• The function is an odd function

• a
• b
• c
• d

The relation ​ (a)   a function.

• is not

• is

• A
• B
• C
• D

Is the function increasing or decreasing from 2 < x < 6?

• Increasing

• Decreasing