Systems of Equations QUIZ

Solve this system of equations by graphing.

y = 4x - 2

y = -x + 3

• (-2,-1)

• (-1,-2)

• (1,2)

• (2,1)

Lesly graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-3,-8)
• (-8,-3)
• (3,-8)
• (8,3)

Solve the following system by graphing.  What is the solution?

• Infinite number of solutions
• (3, 3)
• (3, -3)
• (-3, 3)

Solve the following system by graphing.  What is the solution?

• (1, 2)
• (-1, 2)
• (2, 1)
• (2, -1)

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph
• Don't touch
• Intersect
• Exist

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

• intersecting lines
• parallel lines
• same lines

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. 

y = 2x + 5 and y = 2x - 3

• 1 solution

• no solution

• infinitely many solutions

y = -x + 2 and y = -x + 2

• 1 solution

• no solutions

• infinitely many solutions

y = 5x - 2 and y = 2x - 5

• no solutions

• 1 solution

• infinitely many solutions