Quiz-Systems of Equations

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)
• (6,0)
• (-6,0)
• (7,0)

Solve by elimination 
-12x-10y= 0 
 6x+5y= -1

• infinite solutions
• (0,0)
• no solution 
• (2,1)

If a system of linear equations has infinitely many solutions, what does this mean about the two lines?

• Intersecting lines at one point

• Same lines intersecting everywhere

• Parallel lines that do not intersect

If a system of linear equations has one solution, what does this mean about the two lines?

• Parallel lines that do not intersect

• Same lines intersecting everywhere

• Intersecting lines at one point

Solve the system of equations.

• (10, 3)

• (6, 3)

• (15, 3)

• No solution

• Infinite Solution

Graph the system of equations.

 $y=-x+5$  
 $y=6x-2$  

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Graph the system of equations. $-8x-10=y$  
 $-4x+y=2$  

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Which of the following graphs best represents a system of equations that has no solution?

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Which graphed system of equations below has infinite solutions?

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What is the solution of the system of equations pictured?

• (-4, -2)

• (-4, 2)

• (2, -4)

• (2, 4)