Domain and Range Practice

The graph shows the area of a porch that can be made using 100 feet of wire. Which of these best represents the range of the parabola shown?

• All real numbers

• 0≤x≤50

• All real numbers less than 350

• 0≤y≤350

 

A holiday church's meal costs $12.50 a person plus a delivery fee of $30. The equation is: f(x)=30+12.5x, where x is the number of hungry people. If there are 15 people in the church, what is the domain?

• 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15

• 0, 42.50, 55, 67.50, 80, 92.50, 105, 117.50, ....

• None of the above.

Leslie's car travels about 25 miles per gallon of gas. Her car needs 14 gallons of gas to be full. What is a reasonable domain?

• x≥25

• x≤14

• 0≤y≤14

• 0≤x≤14

What is the domain in inequality notation?

• [ -2 , 2 )

• -2 ≤ x < 2

• ( 5 , 1 ]

• 5 > y ≥ 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The daily cost of hiring a plumber to work x hours on a repair project can be modeled using a linear function. The plumber charges a fixed cost of $80 plus an additional cost of $45 per hour. The plumber works a maximum of 8 hours per day.

For one day of work, what is the range of the function for this situation?

• 0≤x≤8

• 0≤x≤10

• 80≤y≤440

• 45≤y≤685

What is the domain in inequality notation?

• ( -5 , 5 )

• -5 < x < 5

• [-2 , -4 )

• -2 ≥ y > -4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The set of all x-values used to graph a function are called the ____.

• Domain

• Range

• Relation

• Function

Tags

CCSS.HSF.IF.A.1

DOMAIN is found by reading the ends of a graph from ___ to ___.

• Right to left

• Left to right

• Bottom to top

• Top to bottom

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The set of all y-values used to graph a function are called the ____.

• Domain

• Range

• Relation

• Function

Tags

CCSS.HSF.IF.A.1

RANGE is found by reading the ends of a graph from ___ to ___.

• Right to left

• Left to right

• Bottom to top

• Top to bottom

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5