Help with two long questions :(

[Alexandraaa]

I really need help with this and I can't figure out this. It's a bit long hopefully you don't mind.

1. Company A was recently listed on the Toronto stock exchange. The following graph shows the value of its class B shares on the market. The graph is in the link http://i781.photobucket.com/albums/yy93/alexandra2719/image.jpg1_zpske5ppl33.jpg.

a) determine the first and second degree functions.
b) determine the rule of correspondence of the first degree functions
c) describe each first degree function in set builder notation.
d) determine the rrule of correspondence of f1(x) , in both the standard and general forms.
e) determine the domain and range of the second degree functions.

 

[stapel]

I really need help with this and I can't figure out this. It's a bit long hopefully you don't mind.

1. Company A was recently listed on the Toronto stock exchange. The following graph shows the value of its class B shares on the market. The graph is:

a) determine the first and second degree functions.

What does this question mean, within the context of your class?

(A "first degree function" can mean a "linear" function, something along the lines of "y = mx + b". A "second degree function" can mean a "quadratic" function, something along the lines of "y = ax² + bx + c".)

The graph shows one curve consisting of a sequence of functions, named "f_i(x)", where "i" is the counter for the numbered segments of the entire curve. Is this part of the exercise, part (a), asking you to figure out linear and quadratic models for each of the portions of the graph? Or is this part asking you to say which named portions appear to be linear versus appearing to be quadratic? Or something else?

b) determine the rule of correspondence of the first degree functions

Is this asking you to find equations, of the form y = mx + b, for the relevant sections of the curve? If so, what progress have you made with this? (Refresh here.)

c) describe each first degree function in set builder notation.

Where are you stuck on this part?

d) determine the rrule of correspondence of f1(x) , in both the standard and general forms.

How does your book define "standard" and "general" forms? Where are you stuck in applying these definitions?

e) determine the domain and range of the second degree functions.

This is just a matter of copying numbers off the picture. Where are you getting stuck on this part?

Please be complete. Thank you!

 

[Alexandraaa]

I'm doing in class sets, relations and functions.

Standard
Y=a(x-h)"2+k
General
Y=sx"2+bx+c

 

[stapel]

I'm doing in class sets, relations and functions.

Standard
Y=a(x-h)"2+k
General
Y=sx"2+bx+c

What is the meaning, within the context of your (algebra) class, of the second-derivative notation (that is, the double-apostrophes) in these equations? What are your responses to all the other questions I'd asked?

Thank you!