8th Grade Forward Math Practice Test

The table shows the approximate populations of four countries in 2023. Select the two statements that are true based on the information in the table. Select two options.

• A. The population of Nicaragua is approximately 7 times the population of Tonga.

• B. The population of Tonga is approximately 700 times the population of Thailand.

• C. The population of Vietnam is approximately 1.4 times the population of Thailand.

• D. The population of Thailand is approximately 10 times the population of Nicaragua.

• E. The population of Nicaragua is approximately 1,000 times the population of Vietnam.

Tags

CCSS.8.EE.A.3

4. Which of the following numbers is irrational?

• π

Tags

CCSS.8.NS.A.1

Which table does not represent a function?

• A.

  | x | y |

  | -2 | 4 |

  | -1 | 4 |

  | 0 | 1 |

  | 1 | 4 |

• B.

  | x | y |

  | -2 | 7 |

  | -1 | 6 |

  | 0 | 5 |

  | -1 | 4 |

• C.

  | x | y |

  | 4 | -1 |

  | 5 | -2 |

  | 6 | -3 |

  | 7 | -4 |

• D.

  | x | y |

  | 4 | 1 |

  | 5 | 0 |

  | 6 | 1 |

  | 7 | 4 |

Tags

CCSS.8.F.A.1

Tags

CCSS.8.G.A.3

An equation is shown. 8 - 2(x + 10) = 4x - 6 What is the value of x?

• A. -33

• B. -8

• C. -1

• D. 4

A farmer is plowing her fields. She has already plowed 12 acres. The farmer continues to plow at a constant rate so that she will have plowed a total of 36 acres after 4 hours. Which equation could the farmer use to find the number of acres, y, she will have plowed after x hours?

• y = 6x + 12

• y = 9x + 12

• y = 12x + 6

• y = 12x + 9

Tags

CCSS.6.EE.C.9

A school is recording the amount of time it takes students to go through the lunch line. The scatterplot shows the data collected on several days last month. Which line best fits the school’s data, and why?

• A. Line A best fits the data because the line of best fit must go through the origin.

• B. Line A best fits the data because the line of best fit must go through the most data points.

• C. Line B best fits the data because the line of best fit must go through the first data point.

• D. Line B best fits the data because the line of best fit must be closest to the most data points.

Tags

CCSS.8.EE.B.5

The coordinates of two opposite vertices of square PQRS are (2, 1) and (5, 4). Square PQRS is dilated by a scale factor of 2 to create square P'Q'R'S'. The dilation is centered at the origin. What are the coordinates of the vertices of square P'Q'R'S'?

• (4, 2), (10, 8), (4, 8), (10, 2)

• (1, 0.5), (2.5, 2), (1, 2), (2.5, 0.5)

• (0, 0), (7, 5), (0, 5), (7, 0)

• (4, 2), (5, 4), (2, 1), (10, 8)

Tags

CCSS.8.G.A.3

A new company hired 24 employees. Some of the employees work 40 hours each week, and the rest work 20 hours each week. In total, the 24 employees work 740 hours each week. How many of the 24 employees the company hired work 40 hours each week?

• 11

• 12

• 13

• 16

Tags

CCSS.8.EE.C.8C

Ana is graphing function F on a coordinate plane. Which statement is true about the maximum number of different outputs of function F for an input value of 2?

• A. Regardless of the input value, for any function, there can be only one output for every input, so there is a maximum of one output.

• B. The maximum number of outputs is always half the value of the input, so when the input value is 2, there is a maximum of one output.

• C. The maximum number of outputs is always the same as the value of the input, so when the input value is 2, there is a maximum of two outputs.

• D. Regardless of the input value, for any function, there could be both a positive and a negative output value, so there is a maximum of two outputs.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1