Systems of Equations TEST

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions
• (0, -1.5)

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

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

Give the solution to the system.

• (3,1)
• (1,3)
• (-1,3)
• (1, -3)

Solve the system

4x + 8y = 20

-4x + 2y = -30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Solve the system

2x + 9y = -7

6x - 3y = 9

• (-1, -1)

• (2,-1)

• (1,1)

• (1,-1)

Solve the system

−4x − 4y = 0

8x + 8y = 0

• (−6, −4)

• Infinite number of solutions

• No solutions

• (6, 4)

Solve the system

y = 11

y + 4x = 35

• (6, 11)

• (-6, 11)

• (11, 6)

• (11, -6)

Solve the system

y = 2x + 1

y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

• 
• 
• 
• 

What is the first step in solving a system by Substitution?

• Make sure both equations are in standard form.
• Make sure at least one equation is solved for one variable.
• Make sure both equations are in slope-intercept form.
• Make sure both equations can be solved.