Question

In a direct variation equation f(x) = 6 when x = 4. what is the direct variation equation

Answer 1

Answer:

C-f(x)=1.5x

just took the quiz and 3/2 reduces to 1.5

Answer 2

Answer:

D) $f(x)=1.5x$

Step-by-step explanation:

Direct variation is the opposite of Proportional Variation. It is given according to this formula:

$y=kx$

The notation f(x) = y. Since f(x)=y= 6 and x=4 Firstly let's find k. Then plug it back to the original one.

We have:

$y=kx\\6=k4\\k=\frac{6}{4} =k=\frac{3}{2}\\y=\frac{3}{2}x \Rightarrow y\approx1.5x$