Systems Post-Test Practice

Two companies are selling bags

• The first company charges $40 per bag ordered plus a $10 shipping fee for the order.
• The second company charges $28 per bag plus a $16 shipping fee for the order.

How many bags would a customer need to order from either company so that the cost of the order was the same from both companies?

• 4

• 3

• 2

• 1

Which statement is true about the system?

• The system has no solution.

• The system has infinitely many solutions.

• The system has exactly one solution and it is (0, -3).

• The system has exactly one solution and it is (6, 4)

Tags

CCSS.8.EE.C.8B

What is the value of the y in the solution to the system

• -1.8

• -2

• -2.6

• -3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve:
3x + 15 = 3(x + 5)

• No Solution
• x = 15
• Infinitely Many Solutions

Tags

CCSS.8.EE.C.7A

What is the definition of no solution?

• no matter what constant is substituted in for the variable, the equation is ALWAYS true
• no matter what constant is substituted in for the variable, the equation will NEVER be true
• only this ONE solution will make the equation true

Tags

CCSS.8.EE.C.7A

12 (x + 3 ) = 4 (2x + 9 ) +4x

• No Solution
• One Solution
• Infinite Solutions

Tags

CCSS.8.EE.C.7A

Solve (2/3)x + 13 = (7/3)x - 22

• x = 5/3

• x = -10/3

• x = 21

• x = -15

The solution is:

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

Tags

CCSS.8.EE.C.8A

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. 

Tags

CCSS.HSF-IF.C.7A

What is the
slope-intercept form
of the equation
-8x+2y=4

• none
• y=2-4x
• y=4x+2
• y=4x-8y

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3