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Katen [24]
3 years ago
10

Determine whether the representation is proportional. y = -9x

Mathematics
1 answer:
34kurt3 years ago
6 0

Answer:

Yes, they are

Step-by-step explanation:

y = -9x

Here y∝ x

Where -9 is constant of proportionality

If "y" increases by factor of 2, then "x" will also increases by factor of 2. Hence, y and x are " directly proportional" to each other.

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If sugar costs 5.00 pounds per 15 kilograms and you have 25 pounds, all you have to do is set up a simple equation.
5/15 = 25/?
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(25 * 15)/5 = 75
You will receive 75 kilograms of sugar.
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What is the product of (4x + 3)(-2x - 5)?
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Answer:

A) -8x^2 - 26x - 15

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(4x + 3)(-2x - 5)

FOIL

first:  4x*-2x = -8x^2

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