Name:    Quiz 3.4-3.5

1.

Explain how to find the slope, y-intercept, and x-intercept of the line shown.

2.

Describe a real-life problem that has the given rate and intercepts. Draw a line that represents the problem.

Rate: –40 feet per minute
y-intercept: 160 feet
x-intercept: 4 minutes

3.

You have quarters and nickels in your pocket with a total value of \$0.70. There are more quarters than nickels. How many of each coin do you have?

a.   Do you have enough information to write a system of equations to answer the question? If not, what else do you need to know.
b.   Find one possible solution.

4.

The table shows the balances (in dollars) of two accounts earning simple interest for x years. After how many years will the accounts have the same balance?

 x Account A Account B 0 280 340 1 287 343 2 294 346 3 301 349 4 308 352

5.

Three bracelets and six necklaces cost \$63. Two bracelets and five necklaces cost \$51. How much does it cost for four bracelets and four necklaces?

6.

The ordered pairs (0, 3), (3, 9), and (4, 11) are solutions to a system of two linear equations. Describe the graph of the system.

7.

The global competition for the World Cup is broken up into six continental zones. The number of teams in the Australian team’s zone is three more than four times the number of teams in the Brazilian team’s zone. There is a total of 53 teams in both zones. How many teams are in each zone?