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

Tutors Answer Your Questions about Functions (FREE)

Question 571300: What is the domain of y=x^3-4
Click here to see answer by lwsshak3(2907)

Question 571211: A little help and understanding with this one is greatly appreciated...
Find f(x) and g(x) such that h(x) = (f o g)(x).
h(x) = |6x + 9|

Click here to see answer by richard1234(4789)

Question 571210: The point (6,-3) is on the graph of y=f(x). Find the corresponding point on the graph of g(x)=f(3x)
Big troubles on this one for some reason...any help is greatly appreciated.
Click here to see answer by richard1234(4789)

Question 571128: I have to determine whether the graphs of each pair of lines are parallel...Please help.
Click here to see answer by KMST(576)

Question 571039: If f(x)= x^2 + 3, g(x)=4x, the value of g(f(6)) is ?
Click here to see answer by richard1234(4789)

Question 571039: If f(x)= x^2 + 3, g(x)=4x, the value of g(f(6)) is ?
Click here to see answer by nyc_function(2626)

Question 571130: Sorry I forgot to write out the pair of lines
3x+8=y
2y=6x-3
are these lines parallel?
Click here to see answer by Maths68(1140)

Question 571130: Sorry I forgot to write out the pair of lines
3x+8=y
2y=6x-3
are these lines parallel?
Click here to see answer by mananth(10539)

Question 570877: Please help me solve this equation
Click here to see answer by Alan3354(21550)

Question 570769: find the domain of function :
f(x)= √(15-3x )
what is the domain of f?
Click here to see answer by KMST(576)

Question 570711: Can you solve this by graphing?
y=-3x+3
6x+y=6
The solution set is what? Type an ordered pair ( )

Thank you!
Click here to see answer by mananth(10539)

Question 570532: Rosa works due north of home. Her husband Ray works due east. They leave for work at the same time. By the time Rosa is 5 miles from home the distance between them is one mile more than Ray's distance from home. How far from home is Ray?
Click here to see answer by Earlsdon(6098)

Question 570371: Determine whether the function has an inverse function, and if so, find the inverse: QUOTE
The number N of bacteria in a refrigerated food is given by
where T is the temperature of the food (in degrees Celsius). When the food is removed from refrigeration, the temperature of the food is given by: QUOTE

where t is the time (in hours).
Find the composition N(T(t)) and interpret its meaning in context.
Find the number of bacteria in the food when t = 2 hours.
Find the time when the bacteria count reaches 2000.
Click here to see answer by stanbon(48502)

Question 570165: what is the slope of a binomial (-2,4) (-4-4)

Click here to see answer by Alan3354(21550)

Question 570062: Find (g of f)(x) and domain of (g of f)
f(x)=4x+5
g(x)= 2/x
(g of f)(x)= Simplified answer...
Domain of (g of f)...
Click here to see answer by stanbon(48502)

Question 569869: Can this be solved... 21 square root of 35 over 7 square root of 5?
Thank you. How did you do it?
Thanks again.
Click here to see answer by stanbon(48502)

Question 569874: What is the value of B in the equation A = (h/2)(B+b)
Click here to see answer by nerdybill(5403)

Question 569622: how do i graph constant function of f(x)=2 and use the graph to identify domain and range of f

Click here to see answer by JBarnum(1826)

Question 569216: Find ƒ(–5) for each function.
ƒ(x) = 5x + 35
ƒ(x) = 5x + 35
Click here to see answer by Alan3354(21550)

Question 568736: what's the domain of the function:
x^2-4/x-2
Click here to see answer by jim_thompson5910(21667)

Question 568654: What is the domain of SQRT((x+5)/(x^2-25))
Click here to see answer by stanbon(48502)

Question 568572: 23>-x/2-5
Click here to see answer by lwsshak3(2907)

Question 568572: 23>-x/2-5
Click here to see answer by jim_thompson5910(21667)

Question 568557: Hi,
could you please tell me how I would go about finding the solution to this problem:
if
f(2) = 3 and f(6) = 5, then what is f(10) ?
Thank you very much!
Click here to see answer by jim_thompson5910(21667)

Question 568532: Which of the following is NOT included in the domain of f(x)=6x+2 divided by x square-9? a.3 b.-3,3 c.9 d.-3
Click here to see answer by jim_thompson5910(21667)

Question 568415: Hi, I'm taking an online math class as a freshman in high school and I'm making a 65 because I can't figure out how to work the problems can you help me by explaining how to do this problem with all the steps
if h(x)=3x+2 and g(x)=f(x)-2, then what does g(3)=
Click here to see answer by jim_thompson5910(21667)

Question 568428: What is the value of f(-3). The equation is f(-3)?f(x) = 2x second power+ 5x-9
Click here to see answer by jim_thompson5910(21667)

Question 568191: What is the domain for d(x)=x+3
Click here to see answer by jim_thompson5910(21667)

Question 567954: Solve the following function.Show all work
24^x=1
Click here to see answer by Alan3354(21550)

Question 567928: the value of y varies with x and y=12 when x=-6 find y when x=-4
Click here to see answer by Horlaye(3)

Question 567789: The following function is one to one find its inverse.Find the domain and range of
f and f^-1
f(x)=3x+1/4
Click here to see answer by lwsshak3(2907)

Question 567578: 10x/2+1 =64 find the value of x
Click here to see answer by MNSue(6)

Question 567523: I am taking an algebra class involving functions. I can not find what "choose an integer close to the origin" means. It says to choose any value to substitute for x, but the ones I choose turns out wrong, how do I choose the right values? Thankyou in advance.
Click here to see answer by richard1234(4789)

Question 567442: Find the x-intercept and y-intercept of the line given by the equation.
7x-7y+6=0

Click here to see answer by mananth(10539)

Question 567296: x+5/x^2-36
find the domain
Click here to see answer by nerdybill(5403)

Question 567258: state the domain of the given function!y=3x-5/x+4
Click here to see answer by nyc_function(2626)

Question 566526: I have no idea how to solve this problem and i need help.
f(6)=2/6-2
Click here to see answer by Maths68(1140)

Question 566339: How do you solve this problem step by step 2(x-y)=8 where x=6
Click here to see answer by Tias_411(14)

Question 566302: Let f(x) = 3x + 2 and g(x) = 7x + 6.
Find (f • g) and its domain.
Click here to see answer by ad_alta(170)

Question 566214: find the domain of the function algebraically h(x)=√(9-x²)
Click here to see answer by lwsshak3(2907)

Question 565931: give an example of three f,g, and h (none of which is a constant function) such that fog=foh, but g is not equal to h.
Click here to see answer by richard1234(4789)

Question 565454: HOW DO YOU DETERMINE THE TURNING POINTS OF A GRAPH GIVEN THE FUNCTION: F(X)=2(X-3)(X^2+4)^3

Click here to see answer by richard1234(4789)

Question 565905: What is the domain of f(x)= x^2 - 5x + 7 and of its derivative f '(x)=2x - 5? and then compare both domains.
Click here to see answer by stanbon(48502)

Question 565316: Reading "50 Mathematical Ideas you really need to know". It gives Galileo's distance formula - y = 16 times x squared. It says the factor 16 is because feet and seconds are the chosen measurement units. Don't understand why 16? This is the introduction to Calculus and I haven't got past this number 16 yet.
Thank you, Chris.
Click here to see answer by Theo(2967)

Question 565181: what is the domain of h(x)=-6x^2/(x-1)(x+5)
Click here to see answer by ad_alta(170)

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