Topic 6: Linear: D&R and Multiplying Polynomials

Page 17 # 1: A student rode a bike from school to a recreation center. The graph shows the student’s distance in miles from the recreation center after riding the bike for x minutes.

 

Which statements are true about the domain and range of the function for this situation?

• Domain: All real numbers

• Domain: All real numbers greater than or equal to 0 and less than or equal to 28

• Domain: All real numbers greater than or equal to 0 and less than or equal to 9

Answer explanation

We are looking at the x values for range. The lowest x value is 0 and the highest is 28. They have closed points/dots, so they are equal to. Another way to write it is 0 ≤ x ≤ 28.

Page 17 # 1: A student rode a bike from school to a recreation center. The graph shows the student’s distance in miles from the recreation center after riding the bike for x minutes.

 

Which statements are true about the domain and range of the function for this situation?

• Range: All real numbers

• Range: All real numbers greater than or equal to 0 and less than or equal to 28

• Range: All real numbers greater than or equal to 0 and less than or equal to 9

Answer explanation

We are looking at the y vales for range. The lowest y value is 0 and the highest is 9. They have closed points/dots, so they are equal to. Another way to write it is 0 ≤ y ≤ 9.

Page 17 # 2: A part of linear function g is graphed on the grid.

 

Which inequalities best describe the domain and range of the part shown?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Page 17 # 2: A part of linear function g is graphed on the grid.

 

Which inequalities best describe the domain and range of the part shown?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Page 17 # 3: A student worked out at a gym continuously for 50 minutes. The graph shows the remaining percentage of the workout as a linear function of x, the time in minutes.

Which answer choice best describes the domain and range of the function for this situation?

• Domain: All real numbers greater than or equal to 0 and less than or equal to 100

  Range: All real numbers greater than or equal to 0 and less than or equal to 50

• Domain: {−2}

  Range: {100}

• Domain: All real numbers greater than or equal to 0 and less than or equal to 50

  Range: All real numbers greater than or equal to 0 and less than or equal to 100

• Domain: {100}

  Range: {−2}

• The domain of the function is the set of all real numbers. 

• The range of the function is the set of all real numbers. 

Tags

CCSS.6.EE.A.3

Tags

CCSS.HSA.APR.A.1