modelling with quadratic equations: net financial position

[dholmes]

Having problems solving these questions. Can't get them to work out.

1. The manager of a new company predicted that the company would lose $1650 its first month, $1350 its second month, and so on. She further predicted that this trend would continue and that the business would continue to improve by $300 each month. (a) identify the quadratic equation in standard form that describes the net financial position as a function of months. (b) In which month would the net financial position first become positive?

a) (a)P(m) =200(m-6)2 - 5300
(b) month 13 (b) month 13

b) (a)P(m) =200(m-6)2 - 5300 d) (a)P(m) =150(m-6)2 - 5400
(b) month 13 (b) month 12

2) Find all zeros of the polynomial function.
f(x) = -6x2+ 150x2 (2 represent squared)
a)x=0, x=+/- 5 c)x=0, x=25
b) x+0, x=5 d x=0, x= +/- 25

 

[stapel]

Having problems solving these questions. Can't get them to work out.

Please reply with a clear listing of your work and reasoning so far.

While you may not have been able to completely work them out, it may turn out that you were nearly there, or that you made only one simple mistake early on. But we can't help you find the problem until we can see what you've done so far.

Please be complete. Thank you!

Eliz.

P.S. I think that the stuff after the exercises is a copy-n-paste of multiple-choice answer options...? It is not necessary to include this information, unless you are trying to say that you've checked all of the given options and found that none works. If this information is somehow necessary to this discussion, kindly please include a reformatted and legible statement of that information. Thank you. :wink: