Unit 12 Functions Test

The graph of a proportional relationship is shown.

What is the amount of savings per week?

Several functions represent different savings account plans. Which functions are linear?

Which graph represents a linear function increasing at a constant rate?

Two collinear points are given in the table. Give a third point that is also on this line. Please make sure your answer is written so I can read it ..... typing is generally too small for me to see.

The cost, C, to rent a car for d days is shown in the table. Write an equation that represents this function.

The graph of a proportional relationship and an equation are shown.

Which one has the smaller unit rate? Justify your answer.

The function y = 3.50x + 2 represents the total amount of money, y, saved over x weeks. What is true about the function?

Mary and Kim each take 15 minutes to ride their bikes to school. The graphs of the functions that model their rides are shown, where x is the time, in minutes, and y is the distance, in miles.

The graphs are divided into time intervals A, B, C. Use the graphs to match each statement with the appropriate person or people.

Give the steps for graph an equation in slope intercept form.

1. Draw a straight line.
2. Apply the slope from the y-intercept.
3. Graph the y-intercept on the y-axis.
4. Make sure the equation is solved for y.

Graph the equation