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Can someone please explain how you find the max/min point for a formula? I need to be able to do it by hand.. not calculator.. so here's an example you can use: f(x)=(x-3)(x-8)
Okay, these are homework questions that I have, and I am kind of having a hard time with it. Here it is: Find the vertex, focus, and directrix of the parabola. Sketch the graph. Showing the focus and the directrix. 2.) 20x=y^2 4.) x^2= -3y Can anyone help, please? :o
f(x)=0.2x^4+0.3x^3-0.8x^2+5
So, I have the equation y= -3(x-2)^2-13 I tried to find the x-intercepts so that I could graph the parabola, but I got this crazy answer: -2 plus or minus the square root of 39 over negative 3 ??
How do you find the maximum and the minimum point of a qudratic eqaution?:D
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