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If a and b are real numbers such that (a-ib)^2 =4,
verify that
a^4 +a^2 -16 =0
Thank you guys! I really appreciate
That's not the way to show the function for A. But no matter; we have enough information to answer the question.
(i) List the start values.
(ii) Identify the growth rates. We don't have to find a function for B and as it is decreasing we can dismiss it for the question.
(iii) Choose a starting value and growth rate to suit D. It looks like many answers are possible.
Bob
edit. I think this is really just a question about functions and graphs. The 'stock rates' is just window dressing.
22<Dstartprice<25, and it's difficult to figure out the growth rate for B, though I can tell that stock fell by 44c, then 43c, may be 42, 42......
Please clarify stock A function.
Bob
ps. there are 4 stock functions. The function for D is governed by the statement
It should have the second lowest starting price and the second highest rate of growth. Using complete sentences, justify that your function meets these requirements.
The Price for Stock A is given by the function y= 25(1.08)x, where x is the number of days, 1.08 the rate of growth, and 25 the start price
A ,B and C are separate kinds of stocks with different prices. That is the way I see it. Now THEY WANT STOCK D .
Hi;
Neither of those equations fits the data you are given.
So how should I go about it, pliz help..
y(t) = a × ekt :
SO SHOULD THE FUNCTION BE y=30 x e^1.2x,
where 30 is the start price, and 1.2 is 0.4 % of $30, and x number of days?
OR, y = 30 + 1.2x
Gordon is evaluating some stocks he wants to purchase. You can see the function of the stock price below. The variable x represents days.
Stock
A: f(x) = 25(1.08)x
B: x f(x)
0 22.00
1 21.56
2 21.13
C: The initial price of this stock is $30, but it has been increasing 4% each day.
1.) Create the price function for Stock D. It should have the second lowest starting price and the second highest rate of growth. Using complete sentences, justify that your function meets these requirements.
2.) Graph the price function for Stock D. Explain the key features of the graph wit
that is to say the denominator power of both bounds is greater than the numerator power, such that when x approaches infinity, f(x) becomes zero.....thank you guys!
yes, but then how do you fit in the rest of the equation, or is it 2/( x^2 +2) </= f(x) </= 4/ (x^2 +2) ?
@ zetfunc , you mean like, since I know that no matter what, -1<sinx < 1 , so I should subsititute sin(e^x) with 1 and -1, in the expression to get my lower and upper bound?
I would also appreciate a stage by stage go...
Use the squeeze theorem to determine
LIM [ 3 -sin(e^x)]/ 3 minus Sin(exp x) divided by
x--> infinity [V (X^2 + 2)] square root of ( x squared + 2)
Thank you guys, I thought as much, but you know, when doing it alone you doubt yourself. I have learnt something today : a system with three variables and two equations will NOT yield precise values for the variables, except by inserting the infinite number of all possible solutions. Thanx. Will be back soon.
Hi MERTICH;
Best you can do is solve it in terms of x or any of the other 2 variables.
Now substituting any value into x will yield a solution to the system.
I am so sorry Bobbym . The other z is positive.
It should be:
5x+2y-z =9
4x-2y+z =0
You made a mistake. It should be
Since there are three variables and only two equations, there will be infinitely many solutions.
I have edited the system. the other z is positive. Sorry guys.
it should be
5x+2y-z = 9
4x-2y+z =0
5x +2y - z =9
4x - 2y +z =0
I have soved this problem to the point of getting that :
9x = 9
and thus, x = 1.
How do I solve for y and z. Am in College.
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