document.write( "Question 60021This question is from textbook
\n" ); document.write( ": How do you sketch a graph of y=3x^2? \n" ); document.write( "
Algebra.Com's Answer #41259 by ankor@dixie-net.com(22740)\"\" \"About 
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How do you sketch a graph of y=3x^2?
\n" ); document.write( ":
\n" ); document.write( "Choose values for x and find y. Let's say -3 to + 3
\n" ); document.write( ":
\n" ); document.write( "Substitute -3 for x and find y like this:
\n" ); document.write( "y = 3(-3)^2
\n" ); document.write( "y = 3*9
\n" ); document.write( "y = +27
\n" ); document.write( ":
\n" ); document.write( "Do the same with -2, -1, 0, 1, 2, 3, a table of values should look like this:
\n" ); document.write( "x | y
\n" ); document.write( "------
\n" ); document.write( "-3|+27
\n" ); document.write( "-2|+12
\n" ); document.write( "-1|+3
\n" ); document.write( "0 | 0
\n" ); document.write( "+1|+3
\n" ); document.write( "+2|+12
\n" ); document.write( "+3|+27
\n" ); document.write( ":
\n" ); document.write( "Plot these x,y coordinates. The graph should look like this:
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-4%2C+4%2C+-10%2C+30%2C+3x%5E2%29+\" \n" ); document.write( "
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