Test Review: Lessons 5-1 & 5-2

What is a system of linear equations?

• a set of two or more nonlinear equations that use the same variables

• a polynomial with three terms

• set of two or more linear inequalities in the same variables

• two or more linear equations that use the same variables

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

• intersecting lines

• parallel lines

• skew lines

• same line

Tags

CCSS.8.EE.C.8A

How many solutions does this system of linear equation have?

• none

• one

• two

• infinitely many

Tags

CCSS.8.EE.C.8A

How many solutions does this system have?

• no solution

• one Solution

• I don't know

• infinitely many solutions

Tags

CCSS.8.EE.C.8A

^{What is the solution?}

• no solution

• infinitely many solutions

• (-1, 1)

• (1, -1)

Tags

CCSS.8.EE.C.8B

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

• they are parallel and will never intersect

• they are the same line and intersect infinitely many times

• they are intersecting lines and intersect once

Tags

CCSS.8.EE.C.8A

How many solutions does this system of equations have?

• one Solution

• no solution

• infinitely many solutions

• two solutions

Tags

CCSS.8.EE.C.8A

Which of the following shows the correct solution to the system?

y = -¼x + 4

y = 2x + 2

• A

• B

• C

• D

Tags

CCSS.8.EE.C.8B

How can you tell if an ordered pair is a solution to a system?

• It makes the only the first equation true.

• It makes ALL the equations in the system true.

• It makes logical sense

• It makes only the second equation true.

What does the x represent in this situation?
Manny’s Music Rental charges a fee of $40 plus $25 per month to rent a saxophone. Sid’s Saxophones charges $25 plus $30 per month to rent the same saxophone.
y = 25x + 40
y = 30x + 25

• price of a saxophone
• rental fee
• total cost
• number of months

Tags

CCSS.8.EE.C.8C