7th Grade Functions- Cp Wk 15

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7th Grade Functions- Cp Wk 15 - Quiz

Review for DCA- coordinate plane and functions


Questions and Answers
  • 1. 

              What are the coordinates of Point T?

    • A.

      (2, -6)

    • B.

      (2, 6)

    • C.

      (-6, 2)

    Correct Answer
    A. (2, -6)
    Explanation
    The coordinates of Point T are (2, -6).

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  • 2. 

      What are the coordinates of Point F?

    • A.

      (1, 4)

    • B.

      (4, 1)

    • C.

      (4, -1)

    Correct Answer
    B. (4, 1)
    Explanation
    The coordinates of Point F are (4, 1) because the x-coordinate is 4 and the y-coordinate is 1. This means that Point F is located 4 units to the right and 1 unit up from the origin (0, 0) on a coordinate plane.

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  • 3. 

       What are the coordinates of Point U?

    • A.

      (6, 4)

    • B.

      (-4, 6)

    • C.

      (6, -4)

    Correct Answer
    C. (6, -4)
    Explanation
    The coordinates of Point U are (6, -4). This is determined by the ordered pair (x, y), where x represents the horizontal position and y represents the vertical position. In this case, the x-coordinate is 6, indicating that Point U is 6 units to the right of the origin. The y-coordinate is -4, indicating that Point U is 4 units below the origin.

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  • 4. 

       Which quadrant contains Point B?

    • A.

      Quadrant I

    • B.

      Quadrant II

    • C.

      Quadrant III

    Correct Answer
    B. Quadrant II
    Explanation
    Point B is located in Quadrant II because it has negative x-coordinate and positive y-coordinate. In Quadrant II, the x-coordinate is negative and the y-coordinate is positive.

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  • 5. 

       Point J lies in what quadrant?

    • A.

      Quadrant IV

    • B.

      Quadrant III

    • C.

      Quadrant I

    Correct Answer
    B. Quadrant III
    Explanation
    Point J lies in Quadrant III because in the Cartesian coordinate system, Quadrant III is the region where the x-coordinate is negative and the y-coordinate is also negative. Since no specific coordinates are given for Point J, we can assume that it falls in Quadrant III based on the given answer.

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  • 6. 

    Complete the function table        y = x + 6 x y 2 8 4 10 7 13 10 ?

    • A.

      12

    • B.

      14

    • C.

      16

    Correct Answer
    C. 16
    Explanation
    The function table follows a pattern where the value of y is obtained by adding 6 to the value of x. For example, when x is 2, y is 8 (2 + 6 = 8). Similarly, when x is 4, y is 10 (4 + 6 = 10). Applying the same pattern, when x is 10, y would be 16 (10 + 6 = 16).

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  • 7. 

    Complete the function table               y = 3x x y 2 6 5 15 8 24 10 ?

    • A.

      13

    • B.

      30

    • C.

      -30

    Correct Answer
    B. 30
    Explanation
    The function table is asking for the value of y when x is 10. To find this, we can use the given equation y = 3x and substitute x = 10. Therefore, y = 3 * 10 = 30.

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  • 8. 

    Complete the table x Rule y 3 2x + 2 8 4 2x + 2 10 5 2x +2 ?

    • A.

      11

    • B.

      12

    • C.

      14

    Correct Answer
    B. 12
    Explanation
    The rule given is 2x + 2, which means that for any value of x, the corresponding value of y is obtained by multiplying x by 2 and adding 2. In the given table, the value of x is 5. Plugging this value into the rule, we get 2(5) + 2 = 10 + 2 = 12. Therefore, the missing value of y is 12.

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  • 9. 

    Complete the table x Rule y 1 5x - 4 1 2 5x - 4 6 3 5x - 4 ?

    • A.

      11

    • B.

      8

    • C.

      9

    Correct Answer
    A. 11
    Explanation
    The rule in the table is given as 5x - 4. To find the value of y for the third row, we substitute x = 3 into the rule. Therefore, y = 5(3) - 4 = 15 - 4 = 11.

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  • 10. 

    5, 10, 15, 20What would be the next number in the sequence?

    • A.

      15

    • B.

      20

    • C.

      25

    Correct Answer
    C. 25
    Explanation
    The given sequence is increasing by 5 each time. Starting from 5, the next number is 10, then 15, and then 20. Therefore, the next number in the sequence would be 25.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 01, 2010
    Quiz Created by
    Mmmmmssing
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