Given the Values Of $x$ And $y$ , Find an Equation of Variation in Which

Multiple Choice

Given the values of $x$ and $y$ , find an equation of variation in which $y$ varies directly as $x$ .
- $y=2.1$ , when $x=1.2$

A) $y=\frac{1}{1.75} x$
B) $y=2.1 x$
C) $y=\frac{2.52}{x}$
D) $y=1.75 x$