Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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Algebra: Functions, Domain, NOT graphing

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Question 156168: I have one more problem that hopefully you'll be able to help me;
If f(4)=0 and f(6) =6, which of the following could represent f(x)?
A. 2/3x-4
B. x+2
C. x-4
D. 3/2x+6
E. 3x-12
Click here to see answer by jim_thompson5910(13787)

Question 156196: find domain and range for y= x^2+3
Click here to see answer by Edwin McCravy(2922)

Question 156204This question is from textbook

: A study on numerous streams examined the effects of a warming climate. It found an increase in water temperature of about .7 degrees celcius for every increase 1 degree celcius in air temperature.
If the air temperature increased by 9 degrees celcius by how much would you expect the stream temperature to increase?
This question is from textbook

Click here to see answer by checkley77(7049)

Question 156202: let (f) represent the number of feet. which algebraic expression represents the number of inches in (f)
Click here to see answer by checkley77(7049)

Question 156283: I have no idea how to answer this problem let alone solve it id appreciate it if you could help me soon because it is begging to get late in the day.
Click here to see answer by Fombitz(2113)

Question 155414This question is from textbook McDougal Littell Algebra I - Texas Edition
: Directions: Make a table for the function. Identify the range of the function.
18.
y=2/3x + 1/3
Domain: 4,6,8,12
This question is from textbook McDougal Littell Algebra I - Texas Edition

Click here to see answer by Fombitz(2113)

Question 156442: Graph each relation. Find the domain and range.
{(-1,1),(-2,2),(-3,3),(-4,4)}
Click here to see answer by jim_thompson5910(13787)

Question 156444: The volume of a sphere is a function of the radius of the sphere. Write a function for the volume of a ball. Evaluate the function for a volleyball of radius 10.5.
Click here to see answer by Earlsdon(4900)

Question 156599: Hi, can you please help
.
Greatest Integer Function
.
1.2 ---- ???
5.9 ---- ???
(-2.1) - ???
4 ------ ???
(-7.8) - ???
(-10) -- ???
.
Can you please help me get the answers?
.
Thanks ahead of time, Levi

Click here to see answer by stanbon(26269)

Question 156602: Hi, can you help,
.
Greatest Integer Function
.
I asked a question a few minutes ago
.
I was taught that if it was (-2.1) it would be (-3)(one to the left of it) can you please confirm
.
Thanks ahead of time, Levi
Click here to see answer by stanbon(26269)

Question 156201: let (f) represent the number of feet. which algebraic expression represents the number of inches in (f)
Click here to see answer by jojo14344(1483)

Question 156512: make an input-output table for the functions. useing 0,1,2,and 3
y=21-2x
Click here to see answer by nerdybill(2446)

Question 156414: Function Table
In Out
2 .6
4 2.2
5 3
What is the rule?
(In =x and out = answer)
Click here to see answer by solver91311(5072)

Question 156466: 1. Find the equation of the line that has the given characteristics.-Slope (-1/4) passing through the point (5,4)?
2. Find the center and the radius of the circle (x+2)(squared)+y(squared)=9?
3. Is the relation xy=5 a function within the domain (-5,1)?
4. There was a man who was about to take his internet company public. He owned 5% of the 900,000 shares of stock that were issued by the company when the company was first formed. the board of directors decided to reward him by issuing additional stick so that he would then own 10% of the company. How many shares of stock should be issued and then rewarded to him?
Click here to see answer by mizjoice(22)

Question 156686: The problem is: Evaluate and find the domain. f(x)=1/x^2-9 for x=4,a-5
I am able to evaluate and came up with f(4)=1/7 and f(4)=1/a^2-10a+16. What I don't understand is how to find the domain. I know my book says the answer is: x is not equal to 3, and x is not equal to -3. I just don't know how the domain came to be this, I don't understand how to find the domain. Please help.

Click here to see answer by mangopeeler07(450)

Question 156915: The problem : y=2x+3; domain: -4 equal to or less than x less than or equal to 0 graph the function with the given domain and identify the range of the function HELP !! thank you
Click here to see answer by gonzo(654)

Question 157024: f(x)=93x-40 f(-7)
Click here to see answer by checkley77(7049)

Question 157185This question is from textbook
: can you show me how to solve f(x)= x^2 +4
If I can see the example to find domain...I think I can explain to my son. I understand what domain is just not how to set up the problem and work it.
This question is from textbook

Click here to see answer by Alan3354(6079)

Question 157189: f(y)=-3y-2 find f(-5), f(-3), f(1/2), and f(4)
Click here to see answer by checkley77(7049)

Question 157188: I need a full definition and three examples of Non-linear Function
Please can you help me?
Click here to see answer by SAT Math Tutor(36)

Question 157430This question is from textbook college algebra

: Thank you in advance for your help with this problem. f(x)=sqrt5x+1 I am looking for the domain. thanks again.This question is from textbook college algebra

Click here to see answer by gonzo(654)

Question 157431This question is from textbook college algebra

: Thank you in advance for your help finding the domain of this problem. g(x)= 3/x^2+5x+6. thank you. This question is from textbook college algebra

Click here to see answer by gonzo(654)

Question 157489: Hi, I need help getting the domain and range(or just the domain) of this piecewise-defined function f(x)
.
f(x) = { x - 3, }
........ { , }
........ { 20, x > 12 }
.
Please help me with finding the domain and range of the function, Please use interval notation
.
Thanks ahead of time,Levi

Click here to see answer by gonzo(654)

Question 157570: find the indicated outputs f(x)=4x^2-5x
f(0)=
f(-1)=
f(2)=
Click here to see answer by checkley77(7049)

Question 157570: find the indicated outputs f(x)=4x^2-5x
f(0)=
f(-1)=
f(2)=
Click here to see answer by Alan3354(6079)

Question 157537: Determine if the relation is a function. Write yes or no. Explain why
{(5,-7),(6,-7),(-8,-1),(0,-1)}
Click here to see answer by jim_thompson5910(13787)

Question 157531: Hi, Can you please help me?
I need help finding the domain, and range of this piecewise defined function

Click here to see answer by Edwin McCravy(2922)

Question 157662This question is from textbook
: I just can't seem to get this problem! Please help!
xy+5=y-7 solve for y
Thank you!
Kristen MillingtonThis question is from textbook

Click here to see answer by edjones(3295)

Question 157663This question is from textbook
: Alright, I've got one last question. I keep getting half of what the book says the answer is. It seems like such a simple problem, but for some reason I just can't get an answer that matches the books! It's a word problem:
Harold Johnson lives on a four-sided, 50,000-square-foot lot that is bounded on two sides by parallel streets. The city has assessed him $1,000 for curb repair, $2 for each foot of property bordering on these two streets. How far apart are the streets?This question is from textbook

Click here to see answer by Fombitz(2113)

Question 157638: Find the zero of the function algebriacally
3X2-22x-6
Click here to see answer by Fombitz(2113)

Question 157686: Hi, can you please help, can you please help with this piecewise defined function
.
Piecewise defined function
.
f(x) = { x - 4, }
.........{ 2x + 3, }
.........{ 36, }
.
I think the domain is ( , )
.
I think the range is ( , ] U ( , ] U { }
.
Is this domain, and range right? Can you please confirm? Please use interval notation, just like what I used for the domain and range
.
Thanks ahead of time, Levi
Click here to see answer by MathLover1(1183)

Question 157735: Input Output
21 6
7 4
49 10
35 8
need to write the function for this table
Click here to see answer by vleith(1977)

Question 157777: Domain/Range: Can you please provide a step by step explanation using the greater and less than signs.
1) Tom has $8.00. He wants to buy oranges which cost $0.75 a piece.
2) Anna earns $6.50 per hour at her job. She can work up to 18 hours per week.
Thanks

Click here to see answer by checkley77(7049)

Question 157852: The topic is " Find the Difference". For example 5-3= and example 14-(-2)= My answers is 2 for the first problem and 12 for the second problem, is that right?
Click here to see answer by jim_thompson5910(13787)

Question 157893: Given the following functions:
f(x) = 3x^2 - 6x=5 and g(x) = x^2 + 5x-2, evaluate fog(-1) without finding the
composite function.
Click here to see answer by Fombitz(2113)

Question 157904: Given the following functions"
f(x)=√x^2-24x+144 and g(x)= (x^2 - 5x -10)/2, evaluate f0g(7) without finding the composite function.
Click here to see answer by jim_thompson5910(13787)

Question 157932: CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM:
FIND THE INDICATED INTERCEPT(S) OF THE GRAPH OF THE FUNCTION
y-intercept of f(x)x^2 -6x/x^2 + 10x - 15
Click here to see answer by jim_thompson5910(13787)

Question 158035: Given: y = f(x) = (x - 2) / x + 3) find the RANGE and DOMAIN and the VERTICAL and HORIZONTAL ASYMPTOTES.
Click here to see answer by jim_thompson5910(13787)

Question 158052: Find the inverse, state whether it’s a function, state whether the inverse is a function
(1) {(3, 5), (6, 10), (9, 5)}
This is not from the book
Click here to see answer by jim_thompson5910(13787)

Question 158145: find domain f(t)= 4.5e^t
Click here to see answer by edjones(3295)

Question 158161: I have been trying to solve the following problem for 2 days:
5x-9+2x=3x+23-4x
The answer is suppose to be x=4; but I get 14 or 6 and I am not sure what I am doing wrong. Please help!
Thank you,
Cheryl
Click here to see answer by atique.ah(23)

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