ok, i don't get how to graph quadratic functions. can anyone tell me how to do this:
Graph the quadratic function.
y= -2x(squared) + 4x + 3
thanks!
2007-10-24 16:06:02 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
without a calculator plz!!
2007-10-24 16:31:19 · update #1
You don't need calculators for this.
Put in a set of values for x and get the corresponding y values. Plot the points on the x-y plane and join by a freehand curve.
This is the set of values:
If ...... x = 1, 0, 2, -1, -2, 3
then, y = 5, 3, 3, -3, -13, -3
Plot and graph.
2007-10-24 16:46:02 · answer #1 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
Depends on your calculator. You should be able to just plug the equation in and graph it.
2007-10-24 23:17:48 · answer #2 · answered by zenock 4 · 0⤊ 0⤋
go to http://www.calculator.com/calcs/GCalc.html
type in -2x^2 + 4x + 3
2007-10-24 23:55:51 · answer #3 · answered by Sherman81 6 · 0⤊ 0⤋