Algebra Unit 4

The vertical intercept shows.....

• the maximum height that the graph reaches.

• the time that the graph reaches ground level.

• the height that the object started at.

• the minimum height that the graph reaches.

A FedEx store buys 250 cases of paper and uses 3 cases per day. Write a function to show how many cases of paper FedEx has at the end of each day.

• p(d) = 250 + 3d

• p(d) = 250 - 3d

• p(d) = 3d

Tyler is filling a bathtub with water. Function B gives the depth of the water, in inches, t minutes after he begins filling the tub. Explain the meaning of B(9) = 11.

• The temperature of the water is 11 after 9 minutes.

• The tub has 9 inches of water after 11 minutes.

• The tub has 11 inches of water after 9 minutes.

Determine the average rate of change between the points (4, 9) and (7, 5).

• 1.3

• -1.3

• 0.75

• -0.75

What is the value of y in the solution to this system of equations? 3x - 5y = 22 y = -5x + 32

Mathematical Equivalence

ON

Graph the solution to the system. The first equation has been plotted for you.

y = -3x-3

y= 4x +4

Determine the rate of change and interpret what the rate of change means in context of the table.

• 2

• 0.5

• Balloons cost $2 each

• 2 balloons cost $1

• Balloons are $0.50 each

Function M shows Mary's age, function J shows John's age. Select the option that is NOT true.

• m(2) < j(2)

• m(5) = j(5)

• j(1) < j(6)

• m(9) > m(7)

Solve f(x) = -1

• -2

• -1

• 0

• 1

• 2

Determine f(-1).

• -10

• -7

• -4

• -1

• 2