Unit 4 Summative Review

Consider the following system of equations (8.FGR.7.3) Which graph represents the solution of the system?

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• 
• 
• 

Consider the system of equations (8.FGR.7.4). What is the y-coordinate of the solution for this system?

• -8
• 3
• 4
• -6

The solution set for a pair of equations is (-1, -8) (8.FGR.7.2). One of the equations is: -3x + y = -5 Which could be the other option?

• y = - 8x -16
• y = -x + 1
• y = x - 11
• y = 6/5x + 1

4. Leyliani graphed a systems of equations. The graph showed one line. What does this mean?

• The system has one solution
• The system has no solution
• The systems has infinitely many solutions
• Leyliani made an error when graphing

Analyze the system of the two equations shown. (8.FGR.7.4). y = 2 ( x - 3 ) y = 2 ( x + 3) How many solutions does the system have?

• One Solution
• No Solution
• Infinitely Many

What is the solution to the system of equations? (8.FGR. 7.2)

• (-7, 6)
• (5, 6)
• (6, 7)
• (6, 9)

Which system of equations has exactly one solution? (8.FGR.7.5)

• y = 5 and y = -1/2x + 3
• y = 2x + 1 and -2x + y = -2
• y = -1/3x - 3 and 3y = -9 - x
• x - 4y = -12 and 5x = 20y + 60

Solve the following system of equations (8.FGR.7.4) x - y = 11 2x + y = 19

• (10, 8)
• (-9, 11)
• (1, 9)
• (10, -1)

Write a system of equations to describe the situation below and then solve it. A school club is selling concert tickets. Student tickets cost $8 each, and adult tickets cost $12 each. The total revenue is $500, and the number of adult tickets sold is double the number of student tickets. Round to the nearest whole number. There are ____________student tickets and ____________adult tickets sold.

Consider the following questions (8.FGR.7.5) Which of the following statements is NOT true about the graph of a system of equations with no solution?

• A. The lines will be parallel
• B. The lines will share none of the same points.
• C. The lines will have the same y-intercept.
• D. The lines will have the same slope