Question

Im in desperate need of help in algebra 2. Need someone committed to help me through this. Im having so much trouble

Answer 1

Okay, what do you need help with?

Answer 2

Its a lot. Just to let you know, I know absolutely none of this and it makes no sense to me

Answer 3

1st point: ___6___
2nd point:___-2___
3rd point: ___-7___
1. Using the points above as zeros, construct the polynomial function, f(x), that will be the path of your roller coaster. Show all of your work.

2. Using both fundamental Theorem and Descartes` rule of signs, prove to the construction foreman that your function matches your graph. Use complete sentences.

3. Solve for the y–intercept for your function, f(x), and then construct a rough graph of your roller coaster. If your y–intercept is off the graph, give the coordinates of the y–intercept.

Answer 4

@Utterly_Confuzzled

Answer 5

Okay, you can start by creating a polynomial equation by multiplying (x+2)(x+7)(x-6) and graphing it. That's part one.

I don't know how to do part 2

And once you finish part one, let me know and I can help you with part 3

Answer 6

see this is the thing. I don't even know how to begin that. How do i multiply that. It makes no sense. I told you i knew literally nothing...

Answer 7

@Utterly_Confuzzled

Answer 8

Okay let's start by multiplying (x+7)(x+2)

Have you ever heard of the foil method? That means you multiply the first, outside, inside, and last numbers.

In this case, that becomes x^2 + 9x + 14

Next, multiply that by (x-6)
That becomes x^3 + 9x^2 + 14x - 6x^2 - 54x - 84

This simplifies to x^3 +3x^2 - 40x - 84

Answer 9

To solve for the y intercept, just replace x with zero and solve from there. I can help you if you need help with that

Answer 10

For fundamental theorem, basically, it meanes since the leading coefficient has an exponent of 3, there will be three roots in the equation, which is proved correct

Answer 11

Does this make any sense so far?