9.1 A

1. Solve by graphing. (If there is no solution, enter NO SOLUTION. If the system is dependent, enter your answer in terms of x.)

3x + 4y = 12

y = -3/4x + 1

(x, y) = _____________

2. Solve by graphing. (If there is no solution, enter NO SOLUTION. If the system is dependent, enter your answer in terms of x.)

x + y = 3

x - y = 5

(x, y) = ____________

3. Solve by graphing. (If the equations are dependent, enter x for the value of x and y in terms of x. If the system is inconsistent, enter INCONSISTENT.)

x + 1 = 0

y - 5 = 0

(x, y) = _(_____,_____ )

4. Solve by graphing. (If the equations are dependent, enter x for the value of x and y in terms of x. If the system is inconsistent, enter INCONSISTENT.)

2x - 5y = 10

2x - 5y = 10

(x, y) = ____________

5. Solve by graphing. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)

x = 4

3x + 2y = 6

(x, y) = ____________

6. Solve by the substitution method. (If there is no solution, enter NO SOLUTION. Use the parameters x and y as necessary.)

2x - 3y = 19

y = 7 - 2x

(x, y) = ____________

7. Solve by the substitution method. (If there is no solution, enter NO SOLUTION. Use the parameters x and y as necessary.)

2x + 2y = 17

y = 4x + 6

(x, y) = ____________

8. Solve by the substitution method. (If there is no solution, enter NO SOLUTION. Use the parameters x and y as necessary.)

5x - 2y = 3

y = 3x - 1

(x, y) = ____________

9. Solve by the substitution method. (If there is no solution, enter NO SOLUTION. Use the parameters x and y as necessary.)

y = 3x + 1

y = 2x + 2

(x, y) = ____________

10. Rewrite each equation so that the coefficients are integers. Then solve the system of equations by the substitution method. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)

0.1x - 0.6y = 2.5

-0.7x + 0.2y = 2.5

(x, y) = ____________