Question

r(x)=2√x s(x)=√x (r/s)(3)

Answer 1

This is a trick question. First just understand that any number over itself is 1 so $\frac{2 \sqrt{x} }{\sqrt{x}}$ is just $2 * \frac{ \sqrt{x} }{ \sqrt{x}} = 2$ so it is just 2

Answer 2

The ratio of the function at x = 3 is 2

Given the following expression:

$r(x) = 2\sqrt{x} \\s(x) = \sqrt{x}$

Taking the ratio of the functions:

$\frac{r(x)}{s(x)}=\frac{2\sqrt{x} }{\sqrt{x} }$

Substitute x = 3 into the result

$\frac{r}{s}(3)=\frac{2\sqrt{x} }{\sqrt{x} } \\\frac{r}{s}(3)=\frac{2\sqrt{3} }{\sqrt{3} } \\\frac{r}{s}(2)=2$

This shows that the ratio of the function at x = 3 is 2

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