7th Accelerated Math Test 7 Review

The origin was used as the center of dilation to dilate triangle ABC to create image triangle A'B'C'. Which algebraic representation best describes the dilation?

• (x,y) --> (1/2x,1/2y)

• (x,y) --> (2x,2y)

• (x,y) --> (x - 2 , y - 2)

• (x,y) --> (x , y + 2)

Tags

CCSS.HSG.CO.A.2

A large cylindrical storage tank is used to store water at a factory. The dimensions of the storage tank are shown in the diagram. Which measurement is closest to the total surface area of the tank in square meters?

• 962 m²

• 2,895 m²

• 1,387 m²

• 793 m²

The graph shows a relationship between the floor number of an elevator and the time in seconds. Which statement is supported by the information in the graph?

• The data in the graph represents a linear proportional relationship, and the constant rate of change is 2 floors per second with a y-intercept of (20,0).

• The data in the graph represents a linear proportional relationship, and the constant rate of change is 1 floor per second with a y-intercept of (0,20).

• The data in the graph represents a linear non-proportional relationship, and the constant rate of change is 2 floors per second with a y-intercept of (20,0).

• The data in the graph represents a linear non-proportional relationship, and the constant rate of change is 1 floor per second with a y-intercept of (0,20).

Tags

CCSS.8.EE.B.5

Find the value of x.

• 15

• 6

• 5

• 8

Tags

CCSS.8.G.A.5

At a ketchup making factory, there are two ketchup making machines. Machine A contains 8 gallons of ketchup, and Machine B contains 32 gallons of ketchup. Machine A is being filled at a rate of 4 gallons per minute. Machine B is being drained at a rate of 2 gallons per minute. After how many minutes will Machine A and Machine B contain the same amount of ketchup?

• 4 minutes

• 6 minutes

• 10 minutes

• 5 minutes

Tags

CCSS.8.EE.C.8C

Triangle MNP is similar to triangle JKL. Which proportion could be used to show that the slope of JL is equivalent to the slope of MP?

• $\frac{-10-\left(-1\right)}{-4-8}=\frac{-7-\left(-4\right)}{0-4}$

• $\frac{8-\left(-4\right)}{-10-\left(-1\right)}=\frac{4-0}{-7-\left(-4\right)}$

• $\frac{-10-8}{-1-\left(-4\right)}=\frac{-7-4}{-4-0}$

• $\frac{-4-\left(-10\right)}{-1-8}=\frac{-7-0}{-4-4}$

Tags

CCSS.8.EE.B.6

Which scatterplot represents a linear relationship between x and y.

• 
• 
• 
• 

Tags

CCSS.8.F.A.3

The graph shows the gallons of gasoline remaining in the tank and the number of miles driven. Which equation can be used to represent the relationship?

• $y=-25x+15$
  

• $y=25x+15$

• $y=7x+15$

• $y=-0.04x+15$

Tags

CCSS.8.EE.B.5

The table shows the temperature of a fish tank in degrees Fahrenheit after a period of time measured in hours during an experiment. Which equation could be used to represent this relationship?

• $y=80x$

• $y=2x+80$

• $y=-80x+2$

• $y=-2x+82$

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The graph shows the relationship between the cost in dollars and the weight in ounces. What is the unit rate represented by the graph?

• $8 per ounce

• $4 per ounce

• $2 per ounce

• $1 per ounce

Tags

CCSS.7.RP.A.2D