IM: 8.5.5: More Graphs of Functions (Practice)

Last updated 9 months ago
7 questions
1

The solution to a system of equations is (6, 3). Choose two equations that might make up the system.

A car is traveling on a small highway and is either going 55 miles per hour or 35 miles per hour, depending on the speed limits, until it reaches its destination 200 miles away. Letting x represent the amount of time in hours that the car is going 55 miles per hour, and y being the time in hours that the car is going 35 miles per hour, an equation describing the relationship is: 55x + 35y = 200
1

If the car spends 2.5 hours going 35 miles per hour on the trip, how long does it spend going 55 miles per hour?

1

If the car spends 3 hours going 55 miles per hour on the trip, how long does it spend going 35 miles per hour?

1

If the car spends no time going 35 miles per hour, how long would the trip take? Explain your reasoning.

The graph represents an object that is shot upwards from a tower and then falls to the ground. The independent variable is time in seconds and the dependent variable is the object’s height above the ground in meters.
1

How tall is the tower from which the object was shot?

1

When did the object hit the ground?

1

Estimate the greatest height the object reached and the time it took to reach that height. Indicate this situation on the graph.