Domain and Range from Equations

• [1, 2]

• (-∞, 0)

• [0, ∞)

• (0, ∞)

• [1, 2]
• (-∞, 0)
• [0, ∞)
• (0, ∞)

• [1, 2)

• (2, 3]

• [0, 2]

• [2, ∞)

• (2, 5)

• [2.5, ∞)

• (-∞, 2.5)

• [5, ∞)

• F

• G

• H

• J

Select TWO correct answers.

Domain

​ (a)  

Range

​ (b)  

• The domain of the function is {0,1,2,3,4,5}

• The range of the function {0,96,192,288,384,480}

• The domain of the function is all real numbers

• The domain of the function {0,96,192,288,384,480}

• The range of the function {0,1,2,3,4,5}

• The range of the function is all real numbers.

An equation is shown.
y=−3x−12
When the value of the range is −18, what is the value of the domain?

• -2

• 2

• 5

• 36

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

A student borrowed $480 from a friend. He agreed to make monthly payments of $96 with no interest until the loan balance was paid off. The function shown models this situation, where f(x) represents the remaining loan balance in dollars after the student has made x monthly payments. Which statements are true about the domain and range of the function for this situation? Select the correct answers.

• D: {0, 1, 2, 3, 4, 5}

• R: {0, 96, 192, 288, 384, 480}

• D: all real numbers

• R: {0, 1, 2, 3, 4, 5}

• {0, 96, 192, 288, 384, 480}

• D: {0, 96, 192, 288, 384, 480}

• R: all real numbers

Answer explanation

Domain - x values

Range - y values

Real-world examples = apply common sense and judgements

Find the domain.

• All Real Numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Find the Domain.

• (-∞, +∞)

• (0, 11)

• [0, ∞)

• (0, ∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5