6.1 Solve Systems by graphing

If a system of equations has no solution, what does the graph look like? 

• intersecting lines

• parallel lines

• perpendicular lines

• skewed lines

^{What is the solution to the system?} 

• (1,1)
• -2
• (1, 2)
• (1, -1)

What is the solution?

• No solution
• (0, 2)
• (0, -4)
• (3, -3)

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

Parallel Lines never intersect because...

• they have the same slopes. 
• they have the same y-intercept.
• they have different slopes.
• they have different y-intercepts. 

How many solutions will this system have?

• One
• Two
• No Solution
• Infinitely Many Solutions

Solve by checking which ordered pair makes both equations true.  What is the solution?

• (3, -1)

• (-1, -3)

• (-1, -1)

• (-1, 3)

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Solve by graphing

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