If f(x) varies directly with x and f(x) = 50 when x = -10, then what is f(x) when x = 15

Answers

Answer 1

Answer:

The required proportional value of the f(x) is given as -75 when x = 15.

What is proportionality?

proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directlyproportional or inverselyproportional to each other.

Here,
As
f(x) ∝ x
So
f(x₁) / f(x₂) = x₁ / x₂

Substitute the values in the above equation,
50 / f(x₂) = -10 / 15
f(x₂) = -75

Thus, the required value of the f(x) is given as -75 when x = 15.

Learn more about proportionality here: brainly.com/question/22620356

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Answer 2

Answer: f(x)=50 x= -10

If x=1, then f(x)=50/-10 = -5

Therefor, when x=15, f(x) = 15*-5 = -30

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Answers

3/4 = /340 find how 4 equals 340 and multiply 3 by that
340/4=85 so 3X85 will be the answer which is 255 so 3/4 = 255/340
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