Draw graph of quadratic function 87x - 700 - x^2

[education1983]

P = 87x - 700 -x^2

1. Draw a graph of P against x and estimate the maximum value of P and also calculate the coordinates of the stationary point and verify if it is maximum.

I am not very good at graph drawing or stationary points... any help people?

 

[Hootenanny]

P = 87x - 700 -x^2

1. Draw a graph of P against x and estimate the maximum value of P and also calculate the coordinates of the stationary point and verify if it is maximum.

I am not very good at graph drawing or stationary points... any help people?

You've been told several times that you need to show work or at least a little effort when asking for homework help. We will not do your homework for you.

 

[education1983]

I found P= 87X - 700 - X^2 after my calculations, I just need a little help on where to go from there??

 

[Hootenanny]

I found P= 87X - 700 - X^2 after my calculations, I just need a little help on where to go from there??

You must have lecture notes or a textbook to refer to. How does your notes suggest that one sketch such a function?

 

[symbolipoint]

You presented a function P, in general form. Check your notes and textbook to learn how to transform your function into standard form. Standard form for a quadratic function allows you to see how your function has changed from P = x^2. Standard form allows you to very easily identify the vertex of the parabola. You then can let P = 0 or
0 = 87x - 700 -x^2 to find any "roots" or "zeros" of the function P.