Unit 4 Quiz

What is the solution to these equations? (i.e. where do the equations cross?)

• x = -5, y = 3

• x = -3, y = -8

The tables of ordered pairs represent some points on the graphic lines of f and g.

What systems of equations represent line f and g?

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• 
• 
• 

Melanie works at a frozen yogurt stand after school. The stand sells fruit and yogurt smoothies for $3.00 each

and soft-serve cones for $2.00 each. On a hot summer day, the stand sold 12 more smoothies than soft-serve

cones for total sales of $206. Which of the following systems of equations could be used to find , the number

of smoothies, and , the number of cones the shop sold that day?

• 8.5

• -17

• 43

• -12.5

• (-7,7)
• (-7,-7)
• No Solution
• Infinite Solutions
• (7,-7)

At Friday's football game, 1,294 tickets were sold for a total amount of $8,816.00. If each student ticket costs

$5.00, and each adult ticket costs $8.00, how many student tickets were purchased?

• 384

• 512

• 782

• 910

Which graph represents a system of equation that has NO solution?

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• 
• 
• 

Answer explanation

Where the two points interact is the solution but where both graphs are shaded is the overall solution for both graphs.

The elimination method is used to solve systems of equations. What is the goal of the elimination method?

• to get an equation with no variables

• to get an equation with one variable

• to get an equation with both variables on the same side

• to get an equation with a different variable on each side