document.write( "Question 672815: LEASE HELP I HAVE A QUIZ ON TUESDAY Okay, so lately I've been having trouble in Algebra. We're doing slopes and graphing them, and I get the basics. It's the more complicated stuff I get confused on. y = mx+b 1.) y = x^2 - 1 2.) y = 5/2x - 3 3.) 2y = 4x + 8 4.) y = 2x^2 - 6 These are all graphing equations. If you could please explain how to tackle these problems and do them successfully, I'd be really happy! Thanks! \n" ); document.write( "
Algebra.Com's Answer #418329 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " \"y+=+mx%2Bb\".....\"slope-intercept\" form where \"m\" is a slope and \"b\" is \"y-intercept\"\r
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\n" ); document.write( "\n" ); document.write( " 1.) \r
\n" ); document.write( "\n" ); document.write( "\"y+=+x%5E2+-+1\"...this is a quadratic formula and it is a parabola which doesn't have one slope, the slope is constantly changing as you move across the graph\r
\n" ); document.write( "\n" ); document.write( "and it has \"y-intercept\" which is \"b=-1\"\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+x%5E2+-+1%29+\"\r
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\n" ); document.write( "\n" ); document.write( "2.) \r
\n" ); document.write( "\n" ); document.write( "\"y+=+%285%2F2%29x+-+3\" .it's linear function and it has a slope\r
\n" ); document.write( "\n" ); document.write( "the slope is \"m=%285%2F2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y-intercept\" is \"b=-3\"\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+%285%2F2%29x+-+3%29+\"\r
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\n" ); document.write( "\n" ); document.write( "3.) \r
\n" ); document.write( "\n" ); document.write( "\"2y+=+4x+%2B+8\"...first write it in \"slope-intercept\" form\r
\n" ); document.write( "\n" ); document.write( "\"2y%2F2+=+4x%2F2+%2B+8%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"y+=+2x+%2B+4\"\r
\n" ); document.write( "\n" ); document.write( "the slope is \"m=2\"\r
\n" ); document.write( "\n" ); document.write( "\"y-intercept\" is \"b=4\"\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+2x+%2B+4%29+\"\r
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\n" ); document.write( "\n" ); document.write( "4.) \r
\n" ); document.write( "\n" ); document.write( "\"y+=+2x%5E2+-6\"...again,a quadratic formula and it is a parabola which doesn't have one slope\r
\n" ); document.write( "\n" ); document.write( "\"y-intercept\" is \"b=-6\"\r
\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+2x%5E2+-6%29+\"\r
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