Unit 4 Reveiw

For the equation
y - 3 = 2(x + 4),
the line has a slope of 2 and contains what point?

• (-4, 3)
• (3, -4)
• (-3, -4)
• (-4, -3)

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y + 7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y + 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

For the equation
y + 1 = -3(x - 5),
the line contains the point (5, -1) and has a slope of?

• -1
• 1
• -3
• 5

Given the graph, what is the equation of the line in point slope form?

• y - 20 = ½(x - 4)

• y - 20 = 5(x - 4)

• y + 20= 5(x + 4)

• y - 20 = 1(x - 4)

Given the table, what is the equation of the line in point slope form?

• y - 12 = ½(x - 6)

• y - 4 = ½(x - 8)

• y + 2 = ½(x + 4)

• y + 6 = ½(x +12)

A phone plan charges a monthly cost plus $0.30 per minute on data (not on Wi-Fi). In September, Maggie spent 120 minutes using data, and her bill was $51.

Identify the slope in this problem.

• $0.30

• 120

• 51

• slope isn't given

To lease a car, you must make a down payment when you sign the lease, and you must pay a certain amount per month. Osvaldo's lease says that he must pay $199 a month, and after 6 months of leasing his car, he has paid a total of $2,694.

Which is the proper Point-Slope Form equation to represent this situation?

• y - 199 = 6(x - 2,694)

• y - 2,694 = 6(x - 199)

• y - 2,694 = 199(x - 6)

• y + 2,694 = 199(x + 6)

An international phone plan charges a flat rate plus a fee per minute, regardless of the country the call goes to. A 10-minute call to France costs $3.19, while a 15-minute call to Spain costs $4.29.

Identify the two points given in this problem.

• (10, 3.19)

  (15, 4.29)

• (3.19, 10)

  (4.29, 15)

• (France, 3.19)

  (Spain, 4.29)

Daniel went to a fruit market where he found that oranges cost $4 per pound and bananas cost $2 per pound. He bought some oranges and bananas and the total cost was $28.

If "x" represents the pounds of oranges Daniel bought and "y" represents the pounds of bananas, which equation models this situation?

• 2x + 4y = 28

• 4x + 2y = 28

Avery, Mia, and Luna are planning a charity event where they sell two types of tickets: x tickets for $2 each and y tickets for $4 each. They aim to raise $100 from the event.

Which equation describes all possible combinations of tickets they can sell to reach their goal?

• 2x + 4y = 100

• 4x + 2y = 100

• 2x = 4y

• 6xy = 100