$y$ is directly proportional to $x$. When $x=8$, $y=14$. Find the equation connecting \

Question

$y$ is directly proportional to $x$. When $x=8$, $y=14$. Find the equation connecting $x$ and $y$. Find $y$ when $x=20$. Find $x$ when $y=24.5$. Sketch the graph for $x\ge0$, labelling the origin and one other point.

Accepted Answer

(a) $y=\frac74x$; (b) $35$; (c) $14$; (d) straight line through $(0,0)$ and $(8,14)$.

Direct and Inverse Proportion

Direct and Inverse Proportion