Can anyone help me graph a problem? f(x)=-x^2+3

Question

jim_thompson5910 · Answer

when x = 0, what is f(x) ?

aum · Answer

The right hand side is a quadratic expression and therefore when plotted the graph will be a parabola.  This is a vertical parabola since the x-term is squared.  (In horizontal parabola, the y-term will be squared).  Since the coefficient of the x^2 term is negative, this parabola opens downward.  

With that general idea of what the graph will look like we can now get into the specifics.  What is the y-intercept of the parabola?  Set x = 0.  What is f(x) or y?

jim_thompson5910 · Answer

f(x)=-x^2+3

f(0)=-(0)^2+3 ... replace every x with 0

f(0) = ???

aum · Answer

Click on the link and then click on the graph for a magnified view: http://awesomescreenshot.com/03d3lf0s6c