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3 years ago

Does the equation −2x + y = 0 represent a direct variation? If so, identify the constant of variation.

Mathematics

1 answer:

Vikentia [17]3 years ago

3 0

Adding 2x to both sides we get

y = 2x

This is direct variation where the constant is 2.

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What is 2/3 - 1/2 & 2/5 - 1/8

notsponge [240]

2/3-> 4/6
1/2-> 3/6
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1/6

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1/8-> 5/40
Subtract

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2 years ago

A rectangle has a perimeter equal to 24 if we consider its width x how could we talk about its length y in terms of x what are t

riadik2000 [5.3K]

2x + 2y must equal 24. 24 - 2x = 2y and 24 - 2y = 2x. Therefore, 12 - y = x. x could be able to add with y to get 12.

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3 years ago

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Step-by-step explanation:

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mel-nik [20]

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Step-by-step explanation:

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2 years ago

I NEED HELP! If f(x)= 5x^2-3 and g(x)=x^2-4x-8, find (f-g)(x).

yaroslaw [1]

Answer:

(f - g)(x) = 4x² + 4x + 5

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

f(x) = 5x² - 3

g(x) = x² - 4x - 8

(f - g)(x) is f(x) - g(x)

Step 2: Find (f - g)(x)

Substitute: (f - g)(x) = 5x² - 3 - (x² - 4x - 8)
Distribute -1: (f - g)(x) = 5x² - 3 - x² + 4x + 8
Combine like terms: (f - g)(x) = 4x² + 4x + 5

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2 years ago