Lesson 1 Describing and Graphing Situations

Lesson 1 Describing and Graphing Situations

Multiple Select

The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since the walk begins.

Select all true statements about the input variable of this function.

• Distance is the input.

• Time of day is the input.

• Time since the person starts walking is the input.

• t represents the input.

• d represents the input.

Multiple Select

Here are clues for a puzzle involving two numbers.

Seven times the first number plus six times the second number equals 31. Three times the first number minus ten times the second number is 29.

Model the problem with a system of equations and solve. Select the two numbers.

• 5.5

• 7

• -1.25

• 31

• 6

Open Ended

It costs $3 per hour to park in a parking lot, with a maximum cost of $12.

Explain why the amount of time a car is parked is not a function of the parking cost.