document.write( "Question 1086076: a line passes through the point (-4,-1) and has a slope of 3. Write an equation for this line. \n" ); document.write( "

Algebra.Com's Answer #700216 by math_helper(2461) $\"\"$ $\"About$

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Point slope form: y-y1 = m(x-x1)
\n" ); document.write( "Where:
\n" ); document.write( "m=slope
\n" ); document.write( "(x1,y1) = some point on the line\r
\n" ); document.write( "\n" ); document.write( "y - (-1) = 3(x - (-4))
\n" ); document.write( "y+1 = 3(x+4)
\n" ); document.write( "y+1 = 3x+12\r
\n" ); document.write( "\n" ); document.write( " $\"+highlight%28y+=+3x+%2B+11%29+\"$ <<< slope-intercept form (in my experience, this is the most common form)\r
\n" ); document.write( "\n" ); document.write( "Other equivalent forms (just re-arranging the above):
\n" ); document.write( " $\"+highlight%28y%2B1+=+3%28x%2B4%29%29+\"$ <<< point-slope form
\n" ); document.write( " $\"+highlight%283x+-+y+=+-11%29+\"$ <<< standard form\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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