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27 August, 00:51

1. Suppose y varies directly with x, and y = 14 when x = - 4. What is the value of y when x = - 6

a. - 21

b. 10

c. 18

d. 21

+3
Answers (2)
  1. 27 August, 00:53
    0
    direct variation

    y = kx

    substitute in and solve for k

    14 = k (-4)

    14/-4 = k

    k = - 7/2

    y = - 7/2 x

    y = - 7/2 * - 6

    y = 42/2 = 21

    Choice D
  2. 27 August, 01:17
    0
    The correct answer is 21
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