Topic 3 Review

 What is the slope of the line represented by  $f(x)=-\frac{1}{4}x-2$ ?

•  $-2$  

•  $2$  

•  $\frac{1}{4}$  

•  $-\frac{1}{4}$  

Tags

CCSS.8.EE.B.5

What is the slope of the line represented by  $5x-12y=24$ ? 

•  $\frac{5}{12}\$  

•  $-2$  

•  $\frac{24}{5}$  

•  $-12$  

Tags

CCSS.8.EE.B.5

The graph models the linear relationship between the temperature of Earth’s atmosphere and the altitude above sea level. Which of these best represents the rate of change of the temperature with respect to altitude?

• -6.5°C/km

• -3.5°C/km

• -0.29°C/km

• -0.15°C/km

Tags

CCSS.HSF.IF.B.4

The table shows the linear relationship between the balance of a student’s savings account and the number of weeks he has been saving. Based on the table, what was the rate of change of the balance of the student’s savings account in dollars and cents per week?

• 14 dollars a week

• 7 dollars a week

• 21 dollars a week

• 1 dollar a week

Tags

CCSS.HSF-LE.A.1B

Which line appears to have an x-intercept of −5 and a y-intercept of 3?

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• 
• 

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

A lifeguard earns $320 per week for working 40 hours plus $12 per hour worked over 40 hours. A lifeguard can work a maximum of 60 hours per week. Which graph best represents the lifeguard’s weekly earnings in dollars for working h hours over 40?

• 
• 
• 
• 

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSF.LE.A.1

What is the zero of  $r(x)=\frac{8}{3}x-16$ ? 

• -16

• -6

• 6

• 16

Tags

CCSS.HSF-IF.C.7D

A student graphed $f(x)=x$ and $g(x)=f(x)+3$ on the same coordinate grid. Which statement describes how the graphs of `f` and `g` are related?

• The graph of `f` is shifted 3 units up to create the graph of `g`.

• The graph of `f` is steeper than the graph of `g`.

• The graph of `f` is shifted 3 units down to create the graph of `g`.

• The graph of `f` is less steep than the graph of `g`.

Tags

CCSS.HSF.BF.B.3

Which equation shows a reflection across the x- axis and shift down 5 units.

• $y=x+5$

• $y=x-5$

• $y=-x-5$

• $y=-5x+1$

Tags

CCSS.HSF.BF.B.3

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

A zookeeper recorded the feeding schedule for a baby rhinoceros for 20 weeks. The table show the percentage of the baby rhinoceros’s body mass that was used to determine the amount of food given at each feeding as a linear function of its age in weeks.

What is the best prediction of the percentage of the baby rhinoceros’s body mass that should be used to determine the amount of food given at each feeding when it is 25 weeks old?

• 8.5%

• 6%

• 2.5%

• 10%

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6