Question

As one of the new rollercoaster engineers, you have been tasked with developing a rollercoaster that will intertwine with existing Oakville Lake Amusement Park structures. For one of the more thrilling sections, the rollercoaster will dive down in-between buildings, plummet underground, pop back up, and coast over a hill before shooting back underground. There must be three distinct points where the rollercoaster crosses the x–axis. Precise measurements and attention to detail are very important.

Answer 1

here is the graph for it https://www.connexus.com/extra/ThirdPartyProviders/FLVS/29392_29394_AlgII_v13_FLVS_st/module04/images/04_05_assessment/04_05_assessment.jpg

Answer 2

I've already done 1 and 2 but here they are

Answer 3

The link doesn't work

Answer 4

First, here is the existing map of current structures. It is important that the rollercoaster does not go through the foundation of any of these structures. Pick three points on the x–axis that the rollercoaster will dive underground or resurface. (Points that have a building on them are off-limits.)

The rollercoaster will run from right to left, so work in that order when selecting points.
1st point:______
2nd point:______
3rd point:______


Using those points as zeros, construct the polynomial function, f(x), that will be the path of your rollercoaster. Show all of your work.


Using two of the theorems dicussed in the lesson, prove to the construction foreman that your function matches your graph. Use complete sentences.


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


Two competing engineers have offered their solutions for the function. One has suggested g(x) = x3 – 2x2 + 4x – 8, and the other has suggested h(x) = x3 + 5x2 – 8x – 48. Explain to the C.E.O. of Oaville Lake Amusement Park why these other suggestions are invalid. Use complete sentences.

Answer 5

hmm let me see

Answer 6

https://www.connexus.com/extra/ThirdPartyProviders/FLVS/29392_29394_AlgII_v13_FLVS_st/module04/images/04_05_assessment/04_05_assessment.jpg

Answer 7

does that one work?

Answer 8

this is what I see when I click the link (see attached image)

Answer 9

-_- hold on

Answer 10



Answer 11

when you click the link does it let you enter info?

Answer 12

yeah log in info

Answer 13

i trust that you won't go into my school account and screw with things correct?

Answer 14

No don't give me your login info

Answer 15

i really need help tho

Answer 16

/Users/plohrbach/Desktop/Screen Shot 2013-11-14 at 6.06.10 PM.png

Answer 17

is that clickable?

Answer 18

you have to attach it

Answer 19

ok there finally

Answer 20

now to brief you my three points are 5, -4, and ,-13 for #1.
for #2, i set my polynomial up like this :y = (x - 5)(x + 4)(x + 13)

Answer 21

is everything good so far?

Answer 22

points are ordered pairs, not single numbers

Answer 23

something like (2,3) is a point

Answer 24

i know but my x values what i mean

Answer 25

well if they lie on the x axis, your points will be of the form (x,0) where x is any number

Answer 26

so what would be 3 good points that don't go into the buildings but still adhere to the rules in the question of plummeting and going over?

Answer 27

It says the roller coaster will "coast over a hill", but I don't see any hills in the picture. All I see are buildings.

Answer 28

the hill is the thing that looks like a square at the left side of the pic

Answer 29

ok, then you need to pick a root that's between the first two buildings to make sure it goes underground between them

then you need to pick a root that's between the building and the hill

finally, you need to pick a root that's to the left of the hill

Answer 30

hmm

Answer 31

no i think we have a misunderstanding there is not supposed to be a hill the graph should look like this: this is just a rough draft