February 23, 2017

Homework Help: algebra

Posted by caduceus on Friday, November 8, 2013 at 10:11pm.

could someone check my answers to these few questions?

"What is the equation of the line, in slope-intercept form, that goes through the point (-1, -8) with m = 3 ?"

here's my work:
y + 8 = -3(x + 1) [i put the values into the equation.]
y = -3x + 5 [i multiplied -3 by 1 and added 8 to both sides.]

is this right? my main question is whether or not i would add or subtract 8 in this situation. i know that y - (-8) is exactly the same as y + 8, so, in that case, would i subtract 8 from both sides?

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