M2 Unit 5 Practice Test

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2. 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 _____ $25 gift cards. He also gave out _____ $20 gift cards. 聖誕老人有兩種類型的聖誕節禮品卡--$ 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。

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3. 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 _____, and each each adult ticket is worth _____. 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]。

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4. 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 _____ 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。

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5. 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？

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

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

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

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

6. Which systems of equations has infinitely many solutions? 哪組方程式有無限個解？

-3x - 4y = 56x + 8y = 10

-2x + y = 82x + y = 8

3x + 4y = 123x - 4y = 12

-3x + 4y = -123x - 4y = 12

7. 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l和m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？

Y = 3x + 6

Y = -3x + 6

Y = 1/2 x + 2

Y = 3/2 x + 4

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