nc math 1 review

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

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CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.10

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.CED.A.2

CCSS.HSA.REI.D.12

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

• $3x^2-6$

• $3x^2+3x-6$

• $3x^2+6x-6$

• $3x^2+9x-6$

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

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?

• $n+q=50$
  $0.05n+0.25q=7.10$
  

• $n+q=7.10$
  $50n+50q=5.10$

• $0.05n+.25q=50$
  $n+q=7.10$
  

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

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.CED.A.3

CCSS.HSA.REI.C.6

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

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.C.7

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?

• $p=\frac{T}{150}-581s$

• $p=T-\frac{581s}{150}$

• $p=\frac{T-581s}{150}$

• $p=T-581s-150$

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

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.

Tags

CCSS.HSS.ID.A.3

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

• $3x-4y=-18$

•  $4x+3y=18$ 

•  $3x+4y=-6$ 

• $3x+4y=6$

Tags

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?

•  $f\left(x\right)=2x+3$  

•  $f\left(x\right)\ =\ 3x+1$  

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

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

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSF.LE.B.5

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)

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.B.6