document.write( "Question 55980: Hello, I am having a lot of trouble in algebra II right now with graphing parabolas. Could you do me a favor, and write out the steps in graphing a parabola. For example: Step 1: (blah blah blah)
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document.write( " Step 2: (...)
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document.write( "Maybe an example problem would be: x(squared)=8y\r
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document.write( "Thanks again. \n" );
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Algebra.Com's Answer #37982 by Lacey020991(49)![]() ![]() ![]() You can put this solution on YOUR website! Step 1: Find the parent graph (in this case it is y=x^2) \n" ); document.write( "Step 2: If it has a number after the x^2 the the graph moves up and down \n" ); document.write( "--------Ex. y=x^2+3 (the red line is the original and the green is the new) \n" ); document.write( " \n" ); document.write( "Step 3: If the equation has a number infront of the x^2 then it changes the slope by that number. (called a vertical stretch) \n" ); document.write( "--------Ex. y=3x^2 \n" ); document.write( " \n" ); document.write( "Step 4: if it has a number in parenthesis with the x and whole thing is squared the it moves the graph left or right. If it's a negative number it moves it right. If it's a positive number it moves the graph left. \n" ); document.write( "-------Ex. y=(x+3)^2 \n" ); document.write( " \n" ); document.write( "Step 5: If it has a negative infront of it, then the graph flips upside down. \n" ); document.write( "-------Ex.-x^2 \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Now heres and example with all of the steps: \n" ); document.write( ". \n" ); document.write( "y = -3(x-2)^2 + 1 \n" ); document.write( "the negative flips the graph \n" ); document.write( "the 3 make a veritcal stretch by factor of 3 \n" ); document.write( "the 2 in the parenthesis moves the graph right 2 \n" ); document.write( "the one at the end moves the graph up one \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "If any of this confused you just let me know and ill try to explain it better. \n" ); document.write( " |