7.4A Review

A car travels at a constant speed of 60 miles per hour. How far will it travel in 3 hours?

• 120 miles

• 180 miles

• 200 miles

• 150 miles

Which of the following tables represents a constant rate of change?

• | Time (hours) | Distance (miles) | |--------------|------------------| | 1 | 10 | | 2 | 25 | | 3 | 40 |

• | Time (hours) | Distance (miles) | |--------------|------------------| | 1 | 15 | | 2 | 30 | | 3 | 45 |

• | Time (hours) | Distance (miles) | |--------------|------------------| | 1 | 20 | | 2 | 35 | | 3 | 50 |

• | Time (hours) | Distance (miles) | |--------------|------------------| | 1 | 12 | | 2 | 24 | | 3 | 36 |

• 320 km

• 400 km

• 360 km

• 280 km

Which graph represents a constant rate of change?

• A curve that increases

• A straight line that slopes upwards

• A horizontal line

• A line that slopes downwards

A cyclist travels 30 miles in 2 hours. What is the cyclist's speed?

• 10 miles per hour

• 15 miles per hour

• 20 miles per hour

• 25 miles per hour

A runner completes a 10 km race in 50 minutes. What is the runner's average speed in km/min?

• 0.2 km/min

• 0.5 km/min

• 0.3 km/min

• 0.4 km/min

Which of the following represents a linear relationship?

A car travels 150 miles in 3 hours. What is the car's speed?

• 45 miles per hour

• 50 miles per hour

• 55 miles per hour

• 60 miles per hour