Answer:

Explanation:
First, find the rate of change of the line:

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Now plug all the information into the Slope-Intercept Formula. It does not matter which ordered pair is chosen:
![\displaystyle 3 = -3[2] + b \hookrightarrow 3 = -6 + b; 9 = b \\ \\ \boxed{\boxed{y = -3x + 9}} \\ \\ OR \\ \\ 6 = -3[1] + b \hookrightarrow 6 = -3 + b; 9 = b \\ \\ \boxed{\boxed{y = -3x + 9}}](https://img.qammunity.org/2023/formulas/mathematics/college/qz9ofhju9jad75h9kq862cves1v78zn4ho.png)
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