Algebra 1 Chapter 6 Test

Which of the following is not a method to solve systems of equations?

• Elimination
• Difference of Squares
• Substitution
• Graphing

^{What is the solution?} 

• 1
• -2
• (1,  2)
• (1,  -1)

When given these two systems what form should you put them in?

-3x-y=3

3x-y=9

• Point-Slope Form

• Slope Form

• Slope-Intercept Form

• Leave as is

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

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

How many solutions does this system of equations have?

• One Solution
• No solution
• Infinitely Many Solutions
• Two Solutions

Parallel Lines never intersect because...

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

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1, 3)
• (-1, -3)
• (-1, 3)
• (3, 1)

What is the solution to this system?
(assume a 1:1 scale)

• (-2, -2)
• (2, -2)
• (-2, 2)
• (2, 2)

The first step in solving using the substitution method is __________.

• graph the equations
• write one equation as y = mx + b
• get one variable by itself
• add the equations together

Solve the system using substitution.

x + y = 27

y = 8x

• (3, 24)

• (27, 8)

• (4, -8)

• (-3, 16)