Chapter 2 Linear Equations and Functions - 2.6 Draw Scatter Plots and Best-Fitting Lines - 2.6 Exercises - Quiz for Lessons 2.4-2.6 - Page 120: 9

$y=\frac{-16}{5}x$

Start with a direct variation equation: $y=ax$ Plug in given values: $-16=a.5$ $a=\frac{-16}{5}$ Hence, the completed equation is: $y=\frac{-16}{5}x$ The y-intercept is $0$. Plot a point $(0,0)$. The slope is $\frac{-16}{5}$. Plot another point $(1,\frac{-16}{5})$. Draw the graph.