SOLUTION: A line passes through the point -2, 9 and has a slope of -3. Write an equation for this line

Algebra ->  Graphs -> SOLUTION: A line passes through the point -2, 9 and has a slope of -3. Write an equation for this line      Log On


   

Question 420920: A line passes through the point -2, 9 and has a slope of -3. Write an equation for this line
Found 2 solutions by solver91311, nerdybill:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Use the point-slope form of an equation of a line.



where are the coordinates of the given point and is the given slope.

By the way, "-2, 9" does NOT describe a point in , (-2, 9) describes a point in .

John

My calculator said it, I believe it, that settles it
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Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
A line passes through the point -2, 9 and has a slope of -3. Write an equation for this line
.
plug given info into "point-slope" form:
y - y1 = m(x - x1)
y - 9 = -3(x - (-2))
y - 9 = -3(x + 2)
y - 9 = -3x - 6
y = -3x + 3 (this is what they're looking for)