document.write( "Question 263529: if the slope is 7 what is the coordinate of (x,8)and(4,1) \n" ); document.write( "

Algebra.Com's Answer #194230 by checkley77(12844) $\"\"$ $\"About$

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(x,8)and(4,1)
\n" ); document.write( "slope=(y2-y1)/(x2-x1)
\n" ); document.write( "7=(1-8)/(4-x)
\n" ); document.write( "7=-7/(4-x)
\n" ); document.write( "7(4-x)=-7
\n" ); document.write( "28-7x=-7
\n" ); document.write( "-7x=-7-28
\n" ); document.write( "-7x=-35
\n" ); document.write( "x=-35/-7
\n" ); document.write( "x=-5
\n" ); document.write( "ans. (-5,8)& (4,1)
\n" ); document.write( "y=7x+b
\n" ); document.write( "8=7*-5+b
\n" ); document.write( "8=-35+b
\n" ); document.write( "b=8+35
\n" ); document.write( "b=43
\n" ); document.write( "y=-5x+43 is the line equation.
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+45%2C+-5x+%2B43%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 45, -5x +43). \n" ); document.write( "

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