Algebra 1: Finals Practice for #1-16

Which graph represents a system of equations with no solution?

• 
• 
• 
• None of the above

Tags

CCSS.8.EE.C.8A

Solve this system using substitution.

y=3x+2 & y=-2x+4

• (0.4, 3.2)

• (4,32)

• (3,11)

• (4,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system of equations?

• (4, -1)

• (-1, 4)

• (-4, 1)

• (-4, -1)

Tags

CCSS.8.EE.C.8B

Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes. Which system of equations represents the situation?

• 3x + 2y = 315

  2x + 4y = 450

• 3x + 2y = 450

  2x + 4y = 315

• 2x + 2y = 315

  3x + 4y = 450

• 3x - 2y = 315

  2x - 4y = 450

Tags

CCSS.HSA.CED.A.3

On Monday Mr. Beignet bought 10 coffees and 5 doughnuts for his office at the cost of $16.50. On Tuesday he bought 5 cups of coffee and 10 doughnuts for a total of $14.25. Which equations could be used to determine the cost of each item?

• 10c + 5d = 14.25

  5c + 10d = 16.50

• 10c + 5d = 16.50

  5c + 10d = 14.25

• c + d = 10

  5c + 10d = 16.50

• c + d = 5

  5c + 10d = 16.50

Tags

CCSS.8.EE.C.8C

What is the solution to the system?

• (0, 3)

• (3, 0)

• (3, 1)

• (1, 3)

Tags

CCSS.8.EE.C.8B

If the equations are added, which variable will be eliminated?

5x - 4y = 11 & 5x + 4y = -14

• x variable

• y variables

• both variables

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What does the first equation need to be multiplied by to create a zero pair? (to eliminate a variable)

2x-6y=20 & 2x+5y=-11

• -1

• 1

• -2

• 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What do you need to multiply the first equation by to make a zero pair? (to eliminate a variable)

5x-2y=11 & -10x+3y=-4

• 5

• -1

• 2

• -2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Is the point (2, -1) a solution to the system of equations below?

y = 5x + 3 &

y = -2x - 4

• Yes

• No