nc math 1 review

Which choice is the graph of y=(4-x)(x+2)

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CCSS.HSF-IF.C.7A

In which graph does the shaded region represent the solution set for the inequality show below.

2x - y < 4

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CCSS.HSA.REI.D.12

Which expression is equivalent to (x+2)(3x-3)

• $3x^2-6$

• $3x^2+3x-6$

• $3x^2+6x-6$

• $3x^2+9x-6$

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CCSS.HSA.APR.A.1

Joanna has a total of 50 coins in her purse. The coins are either nickels or quarters. The total value of the coins is $7.10. Which system below represents this?

• $n+q=50$
  $0.05n+0.25q=7.10$
  

• $n+q=7.10$
  $50n+50q=5.10$

• $0.05n+.25q=50$
  $n+q=7.10$
  

• $0.05n+0.25q=7.10$
  $50n+50q=7.10$
  

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CCSS.8.EE.C.8C

The function $f\left(x\right)=-0.25x+5$ models the height of a candle x  minutes after it is lit.  what is the meaning of the y-intercept.

• The initial height of the candle

• The final height of the candle

• The rate at which the candle is burning

• the amount of time it will take the candle to burn

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CCSS.HSF.LE.B.5

A company uses the formula T=581s+150p to determine the total cost to purchase s computers and p printers. Which formula can be used to determine the number of printers purchased?

• $p=\frac{T}{150}-581s$

• $p=T-\frac{581s}{150}$

• $p=\frac{T-581s}{150}$

• $p=T-581s-150$

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CCSS.HSA.CED.A.4

CA A set of nine data points is shown below

8,11,12,10,9,7,5,3,9

Which statement is true if a tenth data point of 45 is added to the data set?

• The mean and the median will both increase.

• The mean will increase and the median will decrease.

• The mean will increase and the median will remain the same.

• The mean and median will both decrease.

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CCSS.HSS.ID.A.3

CA Which equation represents the line that is perpendicular to the graph of 4x+3y=9

• $3x-4y=-18$

•  $4x+3y=18$ 

•  $3x+4y=-6$ 

• $3x+4y=6$

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CCSS.HSG.CO.C.9

CCSS.HSG.GPE.B.5

CA  A club began with 3 members. Each month, each member brought one new member. Which function can be used to determine the number of members x months after the club began?

•  $f\left(x\right)=2x+3$  

•  $f\left(x\right)\ =\ 3x+1$  

•  $f\left(x\right)\ =\ 1.5\left(2\right)^x$  

•  $f\left(x\right)=3\left(2\right)^x$  

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CCSS.HSF.LE.A.2

CA The statistician found the residual and then removed one of the points of data and found the residual was better which point did he remove.

• (2.3, 11.0)

• (4.2, 16.5)

• (6.4, 23.1)

• (8.2, 24.3)

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CCSS.HSS.ID.A.3

CCSS.HSS.ID.B.6