document.write( "Question 186145: Could Someone Please Help Me Find The Equation Of The Line That Goes Through The Points (-4,2) And (-3,-7). I Am Terrible At Graphing And Equations And In Need Of Help. Thanks For Your Help In Advance.?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #139584 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Find The Equation Of The Line That Goes Through The Points (-4,2) And (-3,-7).
\n" ); document.write( ":
\n" ); document.write( "Here's a step-by-step way to find the equation and graph it, that you can use
\n" ); document.write( "for all these type of problems.
\n" ); document.write( ":
\n" ); document.write( "Find the slope using the slope formula which it: m = \"%28y2-y1%29%2F%28x2-x1%29\"
\n" ); document.write( ":
\n" ); document.write( "Assign the given values as follows:
\n" ); document.write( "x1 = -4; y1 = 2
\n" ); document.write( "x2 = -3; y2 = -7
\n" ); document.write( ":
\n" ); document.write( "m = \"%28-7-2%29%2F%28-3-%28-4%29%29\" which is m = \"%28-7-2%29%2F%28-3%2B4%29\" = \"%28-9%29%2F%281%29\"
\n" ); document.write( "m = -9
\n" ); document.write( ":
\n" ); document.write( "Use the point/slope formula; y - y1 = m(x-x1)
\n" ); document.write( "y - 2 = -9(x - (-4))
\n" ); document.write( "y - 2 = -9(x + 4)
\n" ); document.write( "y - 2 = -9x - 36
\n" ); document.write( "y = -9x - 36 + 2
\n" ); document.write( "y = -9x - 34; this is the equation
\n" ); document.write( ":
\n" ); document.write( "You can check this by substituting the given value for x, and see if it equals
\n" ); document.write( "the given value for y
\n" ); document.write( ":
\n" ); document.write( "Graph it using the given points. It should look like this:
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-10%2C+6%2C+-40%2C+20%2C+-9x-34%29+\"
\n" ); document.write( ";
\n" ); document.write( "Did this help you get a handle on this stuff? Not that hard, really!
\n" ); document.write( "
\n" );