Question

Which equation best describes the graph of the line that has 1 slope and passes through point (3,-9)? 3

Answer 1

`\begin{gathered} \text{ Since the slope is -1/}3\text{, the equation is} \\ y=-(1)/(3)x+b \\ \\ \text{now, it passes through (3,-9)} \\ -9=-(1)/(3)(3)+b \\ -9=-1+b \\ -9+1=b \\ b=-8 \\ \\ \text{ the equaiton is} \\ y=-(1)/(3)x-8 \end{gathered}`