document.write( "Question 88884This question is from textbook algebra2a
\n" ); document.write( ": I need to know how to find the slope x-intercept and y-intercept. \n" ); document.write( "
Algebra.Com's Answer #64581 by checkley75(3666)\"\" \"About 
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GIVEN A SET OF POINTS. EX. (2,-3) & (-8,5) YOU CAN FIND THE SLOPE(m) THUS:
\n" ); document.write( "(Y2-Y1)/(X2-X1)
\n" ); document.write( "(5+3)/(-8-2)
\n" ); document.write( "8/-10=-4/5 OR -.8
\n" ); document.write( "NOW WE NEED TO CALCULATE THE Y INTERCEPT BYU SUBSTITUTING ONE SET OF (X,Y) VALUES INTO THE LINE EQUATION Y=mX+b) THUS:
\n" ); document.write( "-3=-.8*2+b
\n" ); document.write( "-3=-1.6+b
\n" ); document.write( "b=-3+1.6
\n" ); document.write( "b=-1.4 THIS IS THE Y INTERCEPT. (0,-1.4)
\n" ); document.write( "NOW SET Y=0 AND SOLVE FOR X THUS:
\n" ); document.write( "0=-.8X-1.4
\n" ); document.write( "-.8X=1.4
\n" ); document.write( "X=1.4/-.8
\n" ); document.write( "X=-1.75 FOR THE X INTERCEOT (-1.75,0)\r
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