SOLUTION: can anybody tell me how to graph a function out of an equation for example like f(x)= -2x^2 + 4x + 1

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Question 39986This question is from textbook algebra 1
: can anybody tell me how to graph a function out of an equation
for example like f(x)= -2x^2 + 4x + 1 This question is from textbook algebra 1

Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
when you say graph, you mean plot, on graph paper?

If so, pick values of x...your choice. Pick some easy ones like 0,1,2,3,4. Possibly -1,-2,-3 -4 too. For each, put it into the equation and find the value of f(x) ie "y".

Hopefully you will have picked enough x-values that your graph will cover the "interesting" part of the curve, namely the place it turns.

So...give it a go :-)

jon