can someone please tell me how to plot graphs such as 2x^2 + 10 or something like that cause to be honest it is one my major weaknessess at maths... lol

thx

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- Jun 11th 2005, 09:47 AMslurch901graphs
can someone please tell me how to plot graphs such as 2x^2 + 10 or something like that cause to be honest it is one my major weaknessess at maths... lol

thx - Jun 11th 2005, 03:39 PMMath HelpGraphing equations by hand

step one determine where the equation crosses the y-axis (when x=0)

step two determine where the equation crosses the x-axis (when y=0)

, it does not cross the x-axis

Step three determine what shape the equation has

in this case the equation is a parabola that opens upward and is symmetric about the y-axis, therefore its minima is at (0,10)

Play around with a graphing calculator and see what happens to as A, B and C change.