document.write( "Question 1107406: Write an equation for the line with a slope of 2 and passes through a point (-4, -1) \n" ); document.write( "

Algebra.Com's Answer #722430 by BumbleStar(7) $\"\"$ $\"About$

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Start with the standard slope-intercept formula:
\n" ); document.write( " $\"y=mx%2Bb\"$
\n" ); document.write( "Plug in x, y, and slope.
\n" ); document.write( " $\"-1=2%28-4%29%2Bb\"$
\n" ); document.write( "Now solve for b (y-intercept):
\n" ); document.write( " $\"-1=-8%2Bb\"$
\n" ); document.write( " $\"b=7\"$
\n" ); document.write( "Now go back to the original slope-intercept formula:
\n" ); document.write( " $\"y=mx%2Bb\"$
\n" ); document.write( "Plug in m and b.
\n" ); document.write( " $\"y=2x%2B7\"$ \n" ); document.write( "

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