Math-please check

5. Find three solutions of the equation y=9x-4.
(A) (-5, -49), (-2, -22), (3, 23)
(B) (-5, -49), (2, -22), (3, 23)***
(C) (-5, -49), (-2, -22), (-3, 23)
(D) (5, -49), (-2, 22), (-3, 23)

9.Which is a rule that describes the translation of a point from (4, -8) to (7, -10)?
(A) (x, y) --> (x+3, y-2)
(B) (x, y) --> (x+3, y+2)
(C) (x, y) --> (x-3, y-2)
(D) (x, y) --> (x-3, y+2)***

10. △XYZ has vertices X(5, 6), Y(9, 12), and Z(12, 8). It is translated right 8 units and up 3 units. What are the coordinates of X', Y', and Z'?
(A) X' (13, 9), Y' (15, 17), Z' (11, 20)
(B) X' (-3, 3), Y' (1, 9), Z'(4, 5)
(C) X' (8, 14), Y' (12, 20), Z' (23,19) ***
(D) X' (13, 9), Y' (17, 15), Z' (20, 11)

14. Which table shows a proportional relationship?
(A) x 1 3 4 6
y 2 4 6 7

(B) x 1 2 5 8 ***
y -2 0 6 12

(C) x 2 3 5 6
y -4 -6 -10 -12

(D) x 2 4 6 8
y 2 3 4 5

18. Which equation is true for all x- and y- values in the table below?
x y
1 7
2 14
3 21
4 28
(A) y=x+7
(B) y=x-7
(C) y=x/7
(D) y=7x***

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  1. 5. Find three solutions of the equation y=9x-4.

    (B) (-5, -49), (2, -22), (3, 23)***

    x = -5 , y = -45 - 4 = -49
    x = 2 , y = 18 -14 = 14 TILT!!!!!

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    2. 👎 2
  2. 9. No up 3 down 2

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    2. 👎 2
  3. 10. 5 + 8 = 13 , not 8

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    2. 👎 2
  4. 14. Which table shows a proportional relationship?

    (B) x 1 2 5 8 ***
    y -2 0 6 12

    well -2/1 = -2
    0/1 = 0
    what is proportional about that ?
    =================
    but
    -4/2 = -6/3 = -2 etc

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    2. 👎 2
  5. 18. YES !!!!

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    2. 👎 0

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