Math Homework Help - URGENT

[Tezlin]

Got a major assignment for my Maths B class due tomorrow, and it is a major part of my grade. I need help with this question and I've got major brain freeze.

If you can help with a full equation breakdown and possibly the graph, I will give you major love for a long time.


Question:

A polynomial of the form f(x) = -(x-a)(x+b)(x-c) passes through the points (-3,24), (-1,8) and (3,0). Find a, b and c and hence graph f(x).

I need this pretty quickly, so if you have the answer, don't hesitate to type it up for me. Thanks.

 

[FireZ]

Moving to Homework Help.

 

[Tezlin]

Don't know how I missed this section. I swear I looked. Thanks firez.

 

[i Maax i]

Try drawing the graphs maybe?

It looks like a quadratic fonction to me.

 

[Tezlin]

Try drawing the graphs maybe?

It looks like a quadratic fonction to me.

Drawing out the graphs doesn't do anything for me, because it is only telling me points where it passes through.

 

[i Maax i]

Drawing out the graphs doesn't do anything for me, because it is only telling me points where it passes through.

Factorize your polynome.

Try to make it look like F(x) = ax2 + bx + c

What grade are you in? Have you ever learned with F(x)= Sinx or F(x)= Cos(x) is?

 

[Tezlin]

I have, but I've been away on a 6 week stint at work and it's all flown out the window. I'm pretty much back to basics learning at the moment, but for tomorrow, I'd need a miracle to understand this equation myself.

 

[i Maax i]

I have, but I've been away on a 6 week stint at work and it's all flown out the window. I'm pretty much back to basics learning at the moment, but for tomorrow, I'd need a miracle to understand this equation myself.

It's been awhile, I'd have to get my old math books out lol. I'm pretty sure it has to do with a parabola.

You have to factorize the equation first.

 

[Munus]

Try drawing the graphs maybe?

It looks like a quadratic function to me.

I don't think its a quadratic, it has 3 x values multiplied together, thats a cubic. so it should be in some form of x^3+x^2+x+c

If i remember right c is the vertical shift
x is the horizontal
x^2 is dilation and
i forget what the cubed bit is.

Sorry it's not much help but thats all i can think of atm.