Question 971388
Two ways to handle this:


Just find the equation through point-slope form



OR



Logically eliminate bad choices and accept what will be the correct choice.
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Reject c and d immediately.  Their slopes will be wrong-something you can decide easily in your head.
Reject b, since you know again the slope is wrong.
.
Now, choose "a", equation y=-2x+1.
You can check using the point-slope equation and adjusting the form into slope-intercept.