document.write( "Question 85839This question is from textbook Algebra structure and method
\n" ); document.write( ": I,m supposed to write an equation for the line with slope 3 going through points (1,-2). I'm not sure how you would do that. \n" ); document.write( "
Algebra.Com's Answer #62045 by Earlsdon(6294)\"\" \"About 
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You can start with the slope-intercept form for a linear equation: y = mx + b where m is the slope and b is the y-intercept.
\n" ); document.write( "You are given the slope, m = 3, so you can write:
\n" ); document.write( "1) y = 3x+b
\n" ); document.write( "Now you need to find the value of b, the y-intercept.
\n" ); document.write( "You can do this by substituting the x- and y-coordinates of the given point (1, -2) into equation 1) and solving for b.
\n" ); document.write( "2) -2 = 3(1)+b Subtract 3 from both sides.
\n" ); document.write( "-5 = b
\n" ); document.write( "Now you can write the final equation:
\n" ); document.write( "y = 3x-5
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