3 years ago

What is the constant of proportionality of a graph if x equals 3 and y equals 90?

1 answer:

6 0

y = kx

'k' is the constant of proportionality, or otherwise known as constant of variation.

y = 90
x = 3

90 = k(3)
90 = 3k
3k/3 = 90/3
k = 30

The constant of proportionality is 30.

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Step-by-step explanation:

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A rectangle has vertices at these coordinates. (−6, 3), (−6, 5), (2, 3) What are the coordinates of the fourth vertex of the rec

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Answer:

The coordinates of the fourth vertex of the rectangle is $(2,5)$

Step-by-step explanation:

Let

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3 years ago

Use the elimination method to solve the system of equations.Choose the correct ordered pair. -x + y -2 , 2x -3y = 4

AnnZ [28]

Answer:

To use the elimination method one coefficient of either x or y must be the same number with opposite signs, so the ordered pair is (-10, -8)

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2(-x+y=2) Make one of the coefficients equal, with opposite signs.

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Then find x, -x-8=2

-x=10, so x= -10

(-10, -8) is your answer.

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3 years ago