# M2 Unit 5 Practice Test

8 Questions

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• 1.
A line is graphed on the coordinate plane below. Line y=-4/3 x+2 will be graphed on the same coordinate plane to create a system of equations. The solution to the system is ([Blank], [Blank]). 在下面的坐標上繪製了一條線。 y = -4 / 3 x + 2將繪製在同一坐標上以創建方程組。 該方程組的解是
• 2.
Which systems of equations has infinitely many solutions? 哪組方程式有無限個解？
• A.

-3x - 4y = 5 6x + 8y = 10

• B.

-2x + y = 8 2x + y = 8

• C.

3x + 4y = 12 3x - 4y = 12

• D.

-3x + 4y = -12 3x - 4y = 12

• 3.
Line l is shown on the grid. Line m will be graphed on the same grid. The only solution to the system of linear equations formed by lines l and m occurs when x=-1 and y=3. Which equation could represent line m? 線l顯示在下面。 線m將繪製在同一個圖上。 由線lm構成的線性方程組的唯一解為x = -1和y = 3。 哪一個方程可以代表線m
• A.

Y = 3x + 6

• B.

Y = -3x + 6

• C.

Y = 1/2 x + 2

• D.

Y = 3/2 x + 4

• 4.
The graph of a system of equations is shown. What system of equations represents the graph? 下圖顯示了一組方程式。哪一組方程式代表了此圖？
• A.

Y = 1/2 x y = -2x - 3

• B.

Y = -1/2 x y = -2x - 3

• C.

Y = -1/2x y = 2x - 3

• D.

Y = 1/2 x y = -2x - 3

• 5.
Solve the system of equations. Express your answer in the form ([Blank], [Blank]). -4x + 8y = 44 x - 3y = -15
• 6.
Santa has two types of Christmas gift cards—\$25 and \$20 gift cards. Santa gave out 18 gift cards that are worth a total of \$400. Santa gave out [Blank] \$25 gift cards. He also gave out  [Blank] \$20 gift cards. 聖誕老人有兩種類型的聖誕節禮品卡--\$ 25和\$20禮品卡。 聖誕老人分發了18張禮品卡，總價值為\$ 400。 聖誕老人送出[空白] 25美元的禮品卡。 他還贈送了[空白] 20美元的禮品卡。
• 7.
Kylie and Tammi are selling concert tickets. Kylie sold 10 child tickets and 8 adult tickets for a total of \$248. Tammi sold 12 child tickets and 2 adult tickets for \$176. Each child ticket is worth [Blank], and each each adult ticket is worth [Blank]. 凱莉和塔米正在出售音樂會門票。 凱莉售出了10張兒童票和8張成人票，總計248元。 塔米以176元的價格出售了12張兒童票和2張成人票。 每張兒童票值[空白]，每張成人票值[空白]。
• 8.
The table and the graph below show Cecilia’s and Dawn’s wages, respectively, based on the number of hours worked. Cecilia and Dawn each worked an eight-hour day for five days each week. After working for [Blank] weeks, Dawn earned \$4,400 more than Cecilia. 下表和圖表分別根據工作小時數顯示了塞西莉亞和黎明的工資。 塞西莉亞和黎明都每天工作八小時，每週工作五天。 黎明工作了[空白]週後，比塞西莉亞多賺4400美元。