Name:    Quiz 9-1: Solving Systems by Graphing

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

1.

Determine whether the system of equations has one solution, no solution, or infinitely many solutions by graphing. If the system has one solution, name it. a. no solution c. no solution b. one solution (4,5) d. infinitely many solutions

2.

Solve the system of equations by graphing.    a. (2,1) c. (2,1) and (–4,–5) b. (3,2) d. (1,1) and (–1,–1)

3.

Solve the system of equations by graphing. a.  c.  b.  d.  4.

Which pair of lines is the graph of the system of equations  a. l and m c. l and n b. n and m d. l and p

5.

The number of solutions of the system of equations represented by lines n and p is
 a. exactly one c. exactly two b. none d. infinitely many

6.

The equation for line p and the equation y = 3x - 2 form a system of equations. The number of solutions is
 a. exactly one c. exactly two b. none d. infinitely many

7.

Which ordered pair is the solution of the system of equations represented by lines m and n?
 a. (3, -2) c. (0, -1) b. (0, 3) d. (-1, 0)

8.

Identify the best estimate of the solution of this system. a. {(0, 2)} c. {(0, 0)} b. {(2, 0)} d. {(3, 0)}

9.

Determine whether the system of equations has one solution, no solution, or infinitely many solutions by graphing. If the system has one solution, name it. 10.

Solve the system of equations by graphing.
y =   11.

Solve the system of equations by graphing. 