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3 years ago

Identify the variation as direct, inverse, joint or combined. A = πr^2

Mathematics

1 answer:

Reika [66]3 years ago

7 0

Answer:

1. y = 7x. This is an example of direct variation as the value of y also increases if the value of x is increased.

2. xy = 24. This is an example of inverse because the value of y is decreased when x is increased.

3. F = 4/R. This is inverse variation for the same reason as number 2.

4. m/n = 4. Direct variation. For the same reason as number 1.

5. i = 2pr. Joint variation. The value of i is dependent on the values of two other variables.

6. R = cl/r². Joint variation.

7. A = pir². Direct variation. I believe pi here is for π, leaving only A being dependent only to value of r.

8. V= pir²h. Joint variation.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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What is the linear functions f with the values f (-6) = 10 and f (2) = 10?

rodikova [14]

Given:

f (-6) = 10 and f (2) = 10?

To find:

The linear function f.

Solution:

If f(x)=y, then the function passes through (x,y).

We have, f (-6) = 10 and f (2) = 10, it means the function passes through (-6,10) and (2,10). So, the equation is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

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$y-10=\dfrac{0}{2+6}(x+6)$

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Adding 10 on both sides, we get

$y=10$

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$f(x)=10$

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2 years ago