Systems of Equations and Inequalities Review

Solve the system by elminiation:

9x - 12y = 18

-7x + 4y = -30

Select the two inequalities that would represent the system of inequalities for the given graph.

What is the solution?
(Hint:  Both lines are graphed over each other)

• One Solution

• No solution

• Infinitely Many Solutions

Is (3,-4) a solution to this system?

• yes

• no

Solve the following system of equations:
2x+3y=17
y=4x+1

• (-1,-3)

• (1,5)

• (1,3)

• (2,4)

Solve using any method:
2x+3y=10
-2x+y=14

• (6,-4)

• (-4,6)

• (4,6)

• (6,4)

Solve using any method:
3x-7y=10
12x+14y=16

• (2,-.57)

• (2,-.75)

• (.57,-2)

• (.75,-2)

^{What is the solution?} 

• 1

• -2

• (1, 2)

• (1, -1)

This system has _____ solutions

• no

• 1

• 2

• Infinitely many

What is the value of the y-coordinate of the solution to the system of equations 
x-2y=1
x+4y=7 

• 1

• -1

• 3

• 4