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

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Question 907404: Quadratic function :
(a). Express the function from general to standard form
(b). Find the vertex and its x- and y- intercepts

Please give detail.
Thanks
Click here to see answer by ewatrrr(24785)

Question 907419: Consider the following functions.f(x) = 4/(x + 5), g(x) = x/(x + 5) Find the domain of (f + g)(x). (Enter your answer using interval notation.)
Click here to see answer by ewatrrr(24785)

Question 907335: Draw the graph of the following function. The x- and y-intercepts of each graph should be labeled with their values, any vertex should be labeled with its coordinates. Show each vertical or horizontal asymptotes with a dotted line and label it with its intercept value.

Thanks
Click here to see answer by Fombitz(32388)

Question 906649: Let g(x) = Find and simplify.

Please explain how this is solved.
Thank you
Click here to see answer by Fombitz(32388)

Question 907520: Is it possible for x = -2 to be in the Domains of the functions
a) R(x) = (3x^3 - 5x + 6)/(x+2)
b) H(x) =
Explain why or why not for each function.
What are the Domains of the functions R(x) and H(x)? If required, use inf.for infinity.
Click here to see answer by lwsshak3(11628)

Question 907503: HI,
I need help finding the domain for f(x)=|x-4|
Would "x" be the domain? I understand that domain is a non-negative number.
But get lost after that in finding it out.
Thanks
Click here to see answer by reviewermath(1029)

Question 907593: what are the differences between the closed dots and circles at the end of a line?

Click here to see answer by MathLover1(20850)

Question 907658: Domain and range of g(x)= sqrt(5x+4)

Click here to see answer by Theo(13342)

Question 907664: Among all the pairs of numbers (x,y) such that 2x-y=12, find the pair for which the sum of the squares is a minimum. What is the minimum product?
Click here to see answer by Edwin McCravy(20056)

Question 907655: Consider the function f(x)= (7-x)/(x+6) +2 algebraically determine the domain and all intercepts?

Click here to see answer by Fombitz(32388)

Question 907537: f(x) = x + 1 and g(x) = x2
Click here to see answer by Fombitz(32388)

Question 907832: This equation is driving me crazy please help.
For each function, Find the Domain
f(x,y)=xe^y-ye^x, find f(1,-1)
Thank you.
Click here to see answer by Fombitz(32388)

Question 908092: How can I determine whether a relation is a function?
Click here to see answer by stanbon(75887)

Question 908094: How can i understand functions easily without having problems?
Click here to see answer by Fombitz(32388)

Question 908341: for each function h, find two functions f and g such that h(x) = f(g(x))
h(x) = square root of x^2 + 6 (2 is the exponent)
Click here to see answer by stanbon(75887)

Question 908340: for each function h, find two functions f and g such that h(x) = f(g(x))
h(x) = (5x-8)^ (exponent is 6) (outside of parenthesis)
Click here to see answer by stanbon(75887)

Question 908378: Is the function even, odd, or neither?
6x^6-6/x^3

(Note: The x^3 is diving everything above it. Six X to the sixth power minus six ALL DIVIDED BY x cubed
Click here to see answer by josgarithmetic(39618)

Question 908616: Find the value of f(-9) and g(-2) if f(x)= -5x-2 and g(x)=3x^2-21x
Click here to see answer by ewatrrr(24785)

Question 908698: Factor by grouping x^3+7x^2+4x+28
Click here to see answer by ewatrrr(24785)

Question 908698: Factor by grouping x^3+7x^2+4x+28
Click here to see answer by richwmiller(17219)

Question 908699: Factor completely -53x^2+x^4+196 and also another Question factor completely 7x^2-7
Click here to see answer by Fombitz(32388)

Question 908699: Factor completely -53x^2+x^4+196 and also another Question factor completely 7x^2-7
Click here to see answer by solver91311(24713)

Question 908773: what is the domain in interval notation of f(x)=1/13-x
Click here to see answer by jim_thompson5910(35256)

Question 909042:
Find the intercepts and asymptotes. (If an answer does not exist, enter DNE.)
So I need to understand how to find the:
x-intercept
y-intercept
Vertical asymptote
Horizontal asymptote
Graph of the function r
Domain:
Range:
Please help,
Thank you
Click here to see answer by ewatrrr(24785)

Question 908888: What is the domain of f(x)=3/(x-2)(x+5)
Click here to see answer by luke94(89)

Question 909103: f(x)=(3x-1)^3
Click here to see answer by Alan3354(69443)

Question 909103: f(x)=(3x-1)^3
Click here to see answer by MathLover1(20850)

Question 908886: What is the domain of f(x)=x^3+5x^2-8x+7

Click here to see answer by jim_thompson5910(35256)

Question 909554: Piecewise Function: Suppose a car rental company charges $88 for the first day & $38 for each additional or partial day. let S(x) represent the cost of renting a car for x days. Find the Value of S(4.5).

I have tried S(x)={88 if x<= 1 or 88+38(x) x>1
S(4.5)=88+38(4.5)
88+171=259
The Answer is suppose to be $240
Click here to see answer by richwmiller(17219)

Question 909605: Is the function g(x) = 3/5 a function?
If so what is its degree?
What is its leading coefficient?
If not why does it fail?
Thank you
Click here to see answer by stanbon(75887)

Question 909606: Let g(x) =
what are the four x-intercepts and the single intercept?
Is the function g is (increasing or decreasing) on the interval (−∞, −6).

It is (increasing or decreasing) on the interval (6, ∞).

please explain how to solve. Thank you
Click here to see answer by ewatrrr(24785)

Question 909704: Based on the graph below, match each of the exponential functions to its appropriate base. (Note: Each base is used once and only once)
Here is the graph:
http://i.imgur.com/wZoer8a.png
please explain how to solve this.
Thanks
Click here to see answer by solver91311(24713)

Question 909743: Can someone explain why I am getting these vertical/horizontal asymptotes wrong?

http://i.imgur.com/VAHuhHt.png
Thanks
Click here to see answer by jim_thompson5910(35256)

Question 909843: The function f(x) is given by
f(x)=3x-1
Find in its simplest form
a) f-1f(x)
b)ff(x)
In part a (f-1) is f inverse and the whole question is finverse f(x)
Click here to see answer by rothauserc(4718)

Question 909849: Let f(x) = 5x^2 +3 and g(x) = 2x^2 + 3x -6. Find (fg)(-1).
Click here to see answer by ewatrrr(24785)

Question 909849: Let f(x) = 5x^2 +3 and g(x) = 2x^2 + 3x -6. Find (fg)(-1).
Click here to see answer by stanbon(75887)

Question 909848: Let f(x) = 5x^2 +3 and g(x) = 2x^2 + 3x -6. Find (fg)(-1).
Click here to see answer by ewatrrr(24785)

Question 909851: Let f(x)= √(x+3) and g(x)=2x^2. Find (f of g)(-2)
Click here to see answer by stanbon(75887)

Question 909866: A parabola has the vertex (3, -25 ) and passes through the point (5, -17 ). Find a function f with this graph
f(x) =
Please help,
Thanks
Click here to see answer by Fombitz(32388)

Question 909891: What will these functions look like:
1. The function p is a fourth-degree polynomial with x-intercepts 1.5, 3, and 10 and y-intercept -3. If p(x) is positive only on the interval (3, 10), find p(x)
p(x) =
2. A polynomial f of degree 8 has only linear factors, a single x-intercept -6, and a leading coefficient of -0.7. Find f (x).
f(x) =
3. A polynomial g of degree 3 has the x-intercepts -12, -1, and 9 and the y-intercept -324. Find g(x).
g(x) =
Thanks
Click here to see answer by ewatrrr(24785)

Question 909939: Which of the following constitute a function? Explain, please.
a. {(x,y)|y^2-x=0}
b.{(x,y)|y=-4}
Click here to see answer by Fombitz(32388)

Question 909942: If f(x)=3x+2, find f(2)-f(-2)
Click here to see answer by ewatrrr(24785)

Question 909132: Determine the formula and domain for (f o g)(x) and (g o f)(2). Write your answer in simplest form.
f(x)=x+4 and g(x)=x-2 over 3
Click here to see answer by Fombitz(32388)

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