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

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Question 676555: Determine the domain (x^2)/(7-x)
Click here to see answer by ReadingBoosters(3246)

Question 676929: construct a linear function that goes through the points (0, 6) and (1, 9)
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Question 677178: f(x) =(x^3 -7) /(x^2-4)
Click here to see answer by jim_thompson5910(35256)

Question 677285: create a data table for a relation that is not a function.Describe what your data might represent.
Click here to see answer by aaronwiz(69)

Question 677304: Suppose that the functions f and g are defined as follows.
f(x)= 1/ 4x^2 +1
g(x)= 1/√(3x+1)
Find f+g and f*g . Then, give their domains using interval notation.
(f+g)(x)= ?
What is domain of f+g?
(f*g)(x)=?
What is domain of f*g?
Click here to see answer by aaronwiz(69)

Question 677672: What is the domain and range for f(x) = 2x^2 - 3x + 5
Click here to see answer by lynnlo(4176)

Question 677800: h(x)=x+1 and g(x)= radical x-6 find (g+h)(6)

Click here to see answer by stanbon(75887)

Question 677991: What is the domain and range for y=((x^3-4^3)/(x-4))?
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Question 678313: domain

2x+3x^2+5
Click here to see answer by jim_thompson5910(35256)

Question 678314: I need help factroing

x^2+9x+20
Click here to see answer by jim_thompson5910(35256)

Question 678316: What is the slope and y-intercept of y = 7x+9'

Thanks for your time
Click here to see answer by jim_thompson5910(35256)

Question 678445: How do i find the value of the following express?
f (0) - f(-2) if f(x)=x^2+3x-2
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Question 678576: Can you help me find the domain and range of y=3x+1?
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Question 678660: f(x)=4x-3 and g(x)=(x+3)/4
a) Find the function fg(x)
Hence describe the relationship between the functions f and g.
b) Write down the exact value of fg(sqrt(3))
Click here to see answer by stanbon(75887)

Question 678879: 4 - 10y = 22 -6x
-10y = 18 - 6x
y = 1.8 - .6x
correct?
-----------------------------
8x -2y -5 = 11
-2y -5 = 11 - 8x
-2y = 16 - 8x
y = -8 + 4x
Correct?
Thanks!
Click here to see answer by ReadingBoosters(3246)

Question 678862: Please help write the equation in function form.
4x+y=-10
do you reduce to 2x+y=-5, then 2x=-5/y?
The teacher did not show us how to do these.
Click here to see answer by ReadingBoosters(3246)

Question 678931: Please help me solve for range and domain f(x)= 2 over x squared-x-12
Click here to see answer by stanbon(75887)

Question 678975: Hello -
I am having trouble solving the two equations below where i have to find the domain. I am using the quadratic formula to solve them. Because i thought it would be the easiest way to solve it.. But i am running into errors obtaining the final answer. Can someone explain.
1) f(x) = (x^4-8x^3+9)/3x^2-5x-28
2) f(x) = x^2+3x-13
Thanks
Click here to see answer by ReadingBoosters(3246)

Question 679103: You are using 0.05 gallons per mile of a SUV gas tank that holds 16 gallons. Write the linear equation for this problem in y=mx+b form. Note: this equation has a negative slope (m).
Click here to see answer by pmatei(79)

Question 679141: How would you solve f^2/g^3
Click here to see answer by solver91311(24713)

Question 679800: {(1/3,2),(-2,2/9),(o,2),(-1/2,2/9),(-2,2)} is this a relation a function ornot? explain
Click here to see answer by Edwin McCravy(20054)

Question 679863: What is meant by the grade of a highway?
Click here to see answer by Alan3354(69443)

Question 679904: what is the value of f(-10) of f(x)= x/x^2-16

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Question 679919: Give the domain of f(x) = x+1/x-1
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Question 679984: y=-(-1)+2
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Question 680003: Hello I'm helping my daughter with a function tabel I wanted to make sure we were on the right track. Identify the domin and range and complete a function tabel y=x-4 . X is1,2,3,4 input we have -1-4,-2-4,-3-4,-4-4, and the range we got was -3,,-2,-1,-0 for y is this correct and if not can you direct me ! Thank you so much

Click here to see answer by ReadingBoosters(3246)

Question 680303: if x�+3x�+3x+1 is divided by x-� then the remainder
Click here to see answer by stanbon(75887)

Question 680384: help me solving this problem.
write (2 sqrt( x)+3)/(x) in the form 2x^p + 3x^q where p and q are constants
Click here to see answer by stanbon(75887)

Question 680440: Find the functions f and g such that H(x)=(2)/(x-3)
Click here to see answer by stanbon(75887)

Question 680467: There is an x and y table. I need help on finding the pattern/equation/expression so I can write the next few xs and ys. I hope that makes sense. Here it is:
x y
-2 -11
-1 -4
0 -3
1 -2
2 5
3 24
If possible, please include what type of pattern this is. (Linear, Quadratic, etc.)
Click here to see answer by stanbon(75887)

Question 680633: -2(-8)+4y=4
Click here to see answer by ReadingBoosters(3246)

Question 681165: Use the function to answer the question.
f(x) = 10 � x
What is the value of (f ◦ f)(3)?

Click here to see answer by funmath(2933)

Question 681331: if f(x)=a^2+4, then f(x)+1=?
Click here to see answer by jim_thompson5910(35256)

Question 681646: Solve F(x) for the given domain.
F(x) = x 2+ 3x - 2
F(a) =

Click here to see answer by solver91311(24713)

Question 681689: How do I solve the function
f(y)= y+8/y^2-8y
Click here to see answer by ReadingBoosters(3246)

Question 682023: whats the domain and range of the function. f(x)= 3/5x^2
Click here to see answer by MathLover1(20849)

Question 681877: show that (g of f)(x)=x and (f of g)(x)=x
f(x)=2/(1-x)
g(x)=(x-2)/x
Click here to see answer by ReadingBoosters(3246)

Question 682036: given f(x)=2(x)^2+8 and g(x)=5x-6 How can I find the function ( f+g)(x)?
Click here to see answer by jim_thompson5910(35256)

Question 682264: f(x)=5^x-1
Click here to see answer by jim_thompson5910(35256)

Question 682339: please decide whether the provided relation defines y as a function of x. please give the domain. y=19-2x
Click here to see answer by lynnlo(4176)

Question 682432: what is a function

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Question 682467: Find f ^�1(x)
f(x)=x^2+2 for x ≥ 0
Click here to see answer by ReadingBoosters(3246)

Question 682534: i need help finding a function to represent the number relationship on a table but i dont know how.
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