Name:    Quiz 2.5-2.7

Multiple Choice
Identify the choice that best completes the statement or answers the question.

Solve the system of linear equations using a table.

1.

y = x 7
y
= 3x + 7
 a. (6, –11) c. (7, ) b. (4, –5) d. (5, )

Solve the system of linear equations using a graph.

2.

y = 3x + 1
y = x 4
 a. (–2, –5) c. (1, ) b. (8, ) d. (3, 10)

Solve the system of linear equations.

3.

 a. no solution c. all the points on the line b. (3, 14) d. (6, 23)

4.

 a. (6, ) c. all the points on the line b. no solution d. (12, )

5.

 a. no solution c. (4, ) b. (8, ) d. all the points on the line

6.

 a. (0, 3) c. (7, 4) b. no solution d. all the points on the line

7.

 a. (0, 2.3) c. no solution b. all the points on the line d. (1, 4.3)

Use a graph to solve the equation. Check your solution.

8.

x + = x + 1
 a. 0 c. –1 b. 3 d. 1

9.

5.5x + 8 = 7x 4
 a. 8 c. 9 b. 11 d. 6

Numeric Response

1.

A soccer team has 3 more boys and three-fourths as many girls as last year. The number of players on the team is the same as last year. How many girls were on the team last year?
 Last Year Boys Girls 8 x

Let x and y be two numbers. Find the solution of the puzzle.

1.

Clue 1:  y is more than 5 times the value of x.
Clue 2:  The difference of 4y and 20x is 1.

Solve the equation algebraically and graphically.

2.