9th Grade Math Practice

Kayla wants to drink 26 pints of water a week. How many gallons is this?

• 208 Gallons

• 3.25 Gallons

• 52 Gallons

• 0.31 Gallons

Tags

CCSS.8.EE.C.7B

What units should the following be reported? The cost of renting a car.

• dollars/day

• cents/hour

• dollars/year

• cents/dollar

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

The sum of three consecutive numbers is 123. Which of the following correctly models this scenario. Please simplify your answer.

• x+3=123

• 3x+3=123

• 2+3^x=123

• x+x+x=123

Tags

CCSS.HSA.CED.A.3

Solve: 3(x+2)-6x=12

• 2

• 10/3

• -10/3

• -2

Tags

CCSS.8.EE.C.7B

Solving the system of equations

{3x+2y=6}

{-6x-4y=-12}

• (2,0)

• (-2,6)

• Infinitely many solutions

• No solution

Tags

CCSS.8.EE.C.8B

If the domain is {0,2,-6}, what is the range of y=-2x+3?

• {3,-1,-15}

• {0,7,15}

• {0,7,29}

• {3,-1,-9}

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.5

If the equation y=1/5x+2 is changed to y=1/5x-4, how will the graph of the line change?

• It will shift right 4 units

• It will shift down 4 units

• It will shift right 6 units

• It will shift down 6 units

Tags

CCSS.HSF.BF.B.3

If the equation y=3x+2 is changed to y=-3x+2, how will the graph of the line change?

• It will shift down 3 units

• It will slope in the opposite direction

• It will shift left 1/3 units

• The new line will be parallel to the original line

Tags

CCSS.HSF.BF.B.3

Jill had a list of 14 test scores for which she had calculated the mean. She then realized that she had forgotten to add in the bonus, which everyone got correct, so she added five points to all the grades. What happened to the mean?

• The mean stayed the same

• The mean rose 5 points

• The mean fell 5 points

• It cannot be determined

Tags

CCSS.8.EE.C.7B

Thirty elementary school students are surveyed and asked to name thier favorite color. In reporting the results, Which is the BEST measure of central tendency to use?

• Mode

• Median

• Range

• Mean

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5