Q: If and x equals -12 find y?

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80

x = 5.y.z so 5.10.12 = 600

To find the y-intercept, plug 0 in for x: 3y = -12 y = -4To find the x-intercept, plug 0 in for y: 2x = -12 x = -6The y-intercept is y = -4, and the x-intercept is x = -6.

57

13 ? 15

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y is 12

-6/y=5/-2 5y=12 y=12/5

80

y is directly proportional to x. When y = 15, x = 3 therefore y = 5x When x = 12, then y = 5 x 12 = 60.

x equals -12 and y equals 1/4 of -12, so y = -3.

y = cx when x = 8, y = 12 so that 12 = 8c which gives c = 12/8 = 1.5

x = 24

x = 5.y.z so 5.10.12 = 600

Insufficient information. What is x when y = 12?

y/x is a constant; so first of you can solve for this constant. y/x=6/-3, or y/x=-2 y/4=-2 y=-8

To find the y-intercept, plug 0 in for x: 3y = -12 y = -4To find the x-intercept, plug 0 in for y: 2x = -12 x = -6The y-intercept is y = -4, and the x-intercept is x = -6.

26.