Question

lllll

Answer 1

@freckles @imqwerty @YoungStudier @sleepyhead314 @PrincessHush

Answer 2

... I'm not a complete sentences sort of person...
but umm
since the highest degree is to the fourth power, we can assume that the graph touches the x axis 4 times
and the y intercept is the only number without any x which would be 16 = if you have zero laptops, you profit $16 (lol)

Answer 3

so far this is all i have but I'm lost on the second part: The the ends will both continue up on the graph because the leading coefficient is positive. Since the degree is even, the ends on the graph will travel in the same direction.

Answer 4

oh that's good

Answer 5

but I don't know how to describe how to sketch the graph without using technology

Answer 6

well I suppose you can factor it
then get the x-intercepts
then plot them
and see if the graph is positive or negative between those x-intercepts
that would tell you if it is looping from above or below

Answer 7

yeah! And then how do i show to find where the company will break even????

Answer 8

break evens are when profit = 0
aka the x-intercepts

Answer 9

although it would make more sense to limit the x intercepts to only the positive ones
because you can't really have negative laptops?

Answer 10

yeah true.

Answer 11

indeed

do you need to show how to get the x-intercepts specifically?

I would suggest factor by grouping
x^4 - 8x + 16 - 3x^3 + 12x
= (x^2-4)^2 + (-3x)(x^2-4)
= etc

Answer 12

ok yes probably- thank you!

Answer 13

could you help me with one more please?

Answer 14

I can try
although graphing higher polynomials is not my forte

Answer 15

ok ok what part do you need? :P

Answer 16

does it look like my answer is proficient?

Answer 17

yeah, it answers all the questions :)

Answer 18

ok, thanks!