Tutors Answer Your Questions about Functions (FREE)
Question 92258: Find the domain of the total cost function C(x) where C(x) = 2x + 9,000 & x must be non-negative.
I have calculated the domain as x being grater than/equal to -4,500 however if non-negative would the correct solution simply be x>or= to 0?
Click here to see answer by stanbon(75887)  |
Question 92801: Find the domain of the following function:
Would I go about this by solving for x? I'm not really sure how to start this. If you could just show me the steps to finding the solution for this problem, I would greatly appreciate it!!!
Click here to see answer by bucky(2189) |
Question 92907: If P(4,-5) is a point on the graph of function y= f(x),find the corresponding point on the graph of y=2f(x-6).
I understand that where ever I see an x, I'm supposed to substitute the function. I am confused in how to deal with the Point(4, -5)
Thanks for your consideration.
Click here to see answer by Edwin McCravy(20054)  |
Question 93062: I was doing all right with replacing f of x with g until I came across this question dealing with tables, any help would be appreciated. Thanks.
Several values of the two functions f and g are listed in the following tables:
x 4567 x 4567 f(x) 7654 g(x) 6745
Find (f(g)(6))
Click here to see answer by stanbon(75887) |
Question 93237: find the domain of the following: I need help I am so lost
f(t)=4.5e^t
g(x)=log(x+3)
g(x)=2^x
g(t)-ln(t-1)
what I came up with is f(t)=4.5(2.7183)^t
gx=x^3 or gx=3x and that is where I am at I need major help
Click here to see answer by stanbon(75887) |
Question 93143: 5) Suppose that the function P=13+45ln x represents the percentage of inbound e-mail in the U.S. that is considered spam, where x is the number of years after 2000.
Carry all calculations to six decimals on each intermediate step when necessary.
a) Use this model to approximate the percentage of spam in the year 2003.
b) Use this model to approximate the year that the percent of spam will reach 95% provided that law enforcement regarding spammers does not change.
Click here to see answer by stanbon(75887) |
Question 93317: i have a math packet and i only have 2 questions left. The directions say EXACTLY this:
"Write the equation in function form"
and the question is this:
-4x + 6y = 24
I've checked a lot of help sites and asked a ton of people but i still can't find the answer. Can you tell me how to solve the problem?
Click here to see answer by Earlsdon(6294) |
Question 94992: Ok, My son came home from school today with Math homework. He is in Algebra 1 and they have requested he have a TI-83. I intend to buy this for him but I haven't yet and he has homework tonight. The teacher only explained how to do the problem on the calulator not on paper. I know it can be done on paper but I really do not remember how to do it. I looked in his math book and the book only goes to Chapter 12 and the worksheet is for Chapter 13. I can't figure out how to solve these problems and I'm hoping for some help. The question reads as follows: Find the solution set for each equation, given the replacement set.
One of the problems(not one he has to do) read as follows:
y=4x=1; {(2,-1), (1,5), (9,2), (0,1)}.
If you could explain how to do this problem I'm sure we can do the problems he has to turn in for homework.
Thank you.
Click here to see answer by stanbon(75887) |
Question 94994: Ok, My son came home from school today with Math homework. He is in Algebra 1 and they have requested he have a TI-83. I intend to buy this for him but I haven't yet and he has homework tonight. The teacher only explained how to do the problem on the calulator not on paper. I know it can be done on paper but I really do not remember how to do it. I looked in his math book and the book only goes to Chapter 12 and the worksheet is for Chapter 13. I can't figure out how to solve these problems and I'm hoping for some help. He only has to do certain problems so I'm going to send you one of the ones he doesn't have to do.
The question reads as follows:
Solve ecah equation if the domain is {-2, -1, 1, 3, 4}.
The question is as follows:
y=4 - 5x
If you could just show me how to work these I can help him with the ones he has to turn in tomorrow.
Thank you.
Click here to see answer by Earlsdon(6294) |
Question 94994: Ok, My son came home from school today with Math homework. He is in Algebra 1 and they have requested he have a TI-83. I intend to buy this for him but I haven't yet and he has homework tonight. The teacher only explained how to do the problem on the calulator not on paper. I know it can be done on paper but I really do not remember how to do it. I looked in his math book and the book only goes to Chapter 12 and the worksheet is for Chapter 13. I can't figure out how to solve these problems and I'm hoping for some help. He only has to do certain problems so I'm going to send you one of the ones he doesn't have to do.
The question reads as follows:
Solve ecah equation if the domain is {-2, -1, 1, 3, 4}.
The question is as follows:
y=4 - 5x
If you could just show me how to work these I can help him with the ones he has to turn in tomorrow.
Thank you.
Click here to see answer by scott8148(6628)  |
Question 94994: Ok, My son came home from school today with Math homework. He is in Algebra 1 and they have requested he have a TI-83. I intend to buy this for him but I haven't yet and he has homework tonight. The teacher only explained how to do the problem on the calulator not on paper. I know it can be done on paper but I really do not remember how to do it. I looked in his math book and the book only goes to Chapter 12 and the worksheet is for Chapter 13. I can't figure out how to solve these problems and I'm hoping for some help. He only has to do certain problems so I'm going to send you one of the ones he doesn't have to do.
The question reads as follows:
Solve ecah equation if the domain is {-2, -1, 1, 3, 4}.
The question is as follows:
y=4 - 5x
If you could just show me how to work these I can help him with the ones he has to turn in tomorrow.
Thank you.
Click here to see answer by samuenkadi(3) |
Question 95155: I need help with the problem that follows... this is what the book says: Write a rule for the function:
Input(domain): 2,3,7,10
Output(Range): 8,7,3,0
I've tried, but I can't seem to find a pattern... The paper is due tomorrow, so get back asap please. THANK YOU SO MUCH FOR YOUR HELP!!! my mom can't get it either, so you're my last hope!!
Thanks again,
Katie F.
Click here to see answer by checkley71(8403) |
Question 95208: #21. Give an example of a function that has many values in the domain and only one element in the range.
#22. Give an example of a function that has whole number values in the domain and real number values in the range.
Click here to see answer by stanbon(75887) |
Question 95131: 29. Write a rule for the function:x=2,3,7,10 y=8,7,3,0
30. Write a rule for the function: x=0,4,8,12 y=5,7,9,11
Click here to see answer by stanbon(75887) |
Question 95486: How do you find an equation in slope intercept form of the line satisfying the given condition . . . Find the coordinates of the midpoint of the segment whose endpoints are (-2, 14) and (3, -9)
Help me understand these kinds of problems please?
Click here to see answer by stanbon(75887) |
Question 95649: Please help me with this problem:
Given the function f defined by f(x)=cos(x)-cos^2(x) (for -pi being less than or equal to x which is less than or equal to pi).
Find the x-intercepts of the graph of f.
Click here to see answer by stanbon(75887) |
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