## Algebra 1

$y=\frac{1}{3}x$
Let x be the number of sides and let y be the number of triangles. "Is $\frac{1}{3}$" tells us to multiply the number of sides by $\frac{1}{3}$ to find the number of triangles. $y=\frac{1}{3}x$ Create a table with some values that satisfy the equation. $\underline{sides, x}\ \ \ \underline{triangles, y}$ $\ \ \ \ \ \ \ 3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1$ $\ \ \ \ \ \ \ 6\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2$ $\ \ \ \ \ \ \ 9\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3$ Plot the points in the table. Plot other points that lie on the imaginary line connecting the points. Only plot points at whole values of x that are a multiple of 3 since the number of triangles cannot be fractional.