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

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Question 474570: y= 2x+4 is a Linear equations for example shows a straight line when grouped. Example f(x)=X(2) +6 Find (-5), and (4)

Click here to see answer by sofiyac(983)

Question 474528: What is the domain of {x,y}:y=2x^2 +1
Click here to see answer by sofiyac(983)

Question 474597: Let f(x)= x^2+5x+3 and g(x)=x+2 find (fog)(x) (gof)(x) (fog)(2) and (gof)(-2)
Click here to see answer by Tatiana_Stebko(1539)

Question 474617: Which of the following is a function whose domain and range are all real numbers?
A) f(x) = x/x - 3
B) f(x) = 2x - 9/3

C) f(x) = 5x + 2/3x - 11

Click here to see answer by Tatiana_Stebko(1539)

Question 474620: What are the asymptotes of the graph of y = 3/2x - 6 + 5 ?
A) x = 3, y = 3
B) x = -3, y = -5
C) x = 3, y = 5
D) x = 3, y = -5

Click here to see answer by Tatiana_Stebko(1539)

Question 474618: What are the asymptotes of the graph of y = 2/x + 18 - 7 ?
A) x = 18, y = 2
B) x = -18, y = -7
C) x = -18, y = 7
D) x = -7, y = -18

Click here to see answer by ewatrrr(24785)

Question 474667: What is the range of the function y = 8/x2+2?

Click here to see answer by stanbon(75887)

Question 474646: What is the range of the function y = 8/x^2+2?
Click here to see answer by MathLover1(20850)

Question 474616: Which of the following is a function whose domain and range are all nonzero real numbers?
A) f(x) = 6/2x + 3
B) f(x) = x - 1/x + 5
C) f(x) = 4x - 7/x
D) f(x) = x/2x - 8
E) None of these

Click here to see answer by MathLover1(20850)

Question 474982: Please solve the:
a. f o g
b. g o f
c. f o g (3)
Of: f(x) = 2x , g(x) = x + 5
Please show solution.
Click here to see answer by stanbon(75887)

Question 475229: If f(x)=1/x find f(x+h)-f(x)
Click here to see answer by solver91311(24713)

Question 474945: What is g(x)=(1/4)�-�ⁿ , find g(3/2)
ps: the exponent is 1-2n
Click here to see answer by robertb(5830)

Question 475270: y + 1 = X squared
x squared + y = 7
Click here to see answer by mananth(16946)

Question 475267: 3x + y = 4
-6x - 2y =6
Click here to see answer by mananth(16946)

Question 475268: 3x + 5y -z =11
2x + y - 3z=12
y + 2z = -4
Click here to see answer by mananth(16946)

Question 475265: 3x-4y=-19
2x+ 4y=14
Click here to see answer by mananth(16946)

Question 475266: 2x+y =13
3x + 3y =24
Click here to see answer by mananth(16946)

Question 475560: Find the x and y intercepts

Click here to see answer by ankor@dixie-net.com(22740)

Question 475746: Given the function f described by f(x) =11x, find each of the following. (a) f(-10), (b) f(6), (c) f(29), f(-10) =
Click here to see answer by richard1234(7193)

Question 475859: Find the domain of p(x)= x^2 +8 and is x not equal to zero or 8, greater than zero, or a real number?
Click here to see answer by stanbon(75887)

Question 475975: point slope formula with function, what do i do with the function
I need explantion on the function
Click here to see answer by richard1234(7193)

Question 476085: f(x)=sqrt(x+3)and g(x)=4x^2-3, then find f[g(x)].
Click here to see answer by Tatiana_Stebko(1539)

Question 476511: What is the inverse of f(x)=ln(x-2)? I got y=e^x +2, but I don't think that's right...I wasn't sure how to eliminate the natural log
Click here to see answer by scott8148(6628)

Question 476602: x2 + 12x -64 =0
a. move the constante term to the right side of the equation:
b. multiply each term in the equation for four times the coefficient of the x2 term:
c. square the coefficient of the orginal x term and add it to both side of the equation:
d. Take the square root of both sides
e. Set the left side of the equation to the positive square root on the right side and solve for x
f. Set the left side of the equation equal to the negative square root on the right side and solve for x.
Click here to see answer by Theo(13342)

Question 476657: Given f(x) = and g(x) =
Find (fog)(x).
Any help would be appreciated! Thank you!
Click here to see answer by stanbon(75887)

Question 476749: I have a question and need to know if I put it in standard form correctly. The problem is y=5x^2-10x+12. My solution is
5(x^2-2x) + 12
5(x^2-2x+1) + 12
5(x-1)(x-1) +7
5(x-1)^2 + 7 but I'm not sure what happened with the 12 and 5
Click here to see answer by Alan3354(69443)

Question 476152: Find the domain and range of the relation, and state whether or not the relation is a function.
{(4, 8), (5, 9), (6, 10), (7, 11)}

Click here to see answer by richard1234(7193)

Question 476981: Let f (x) = 2x^2 + 8x-1
(a) Find the derivative f � of f.
(b) Find an equation of the tangent line to the point of (1,3).
(c) Determine whether the critical point gives maximum or minimum f value and find the value.
Do appreciate your help. Thanking you in advance
Click here to see answer by robertb(5830)

Question 477133: Given the function evaluate f(3). I did:

=54+3
=57
so f(x)=57? Did I do that right?

Click here to see answer by stanbon(75887)

Question 477128: letf(x)=2x-8
find x so that f(x)=-29/4
Click here to see answer by jorel1380(3719)

Question 477204: What are the domain and range of
Thanks
Click here to see answer by solver91311(24713)

Question 477310: if f(x)+f(1/x) = x + 1/x +2 then find f(f(2))
Click here to see answer by richard1234(7193)

Question 477259: what would the domain and range be if the sets were .....(-3,8) (4,1) (-1,0) (2,2)
Click here to see answer by richard1234(7193)

Question 477523: Looking for the natural domain of t/(t-1)
is the answer: t does not =1
Thanks
Click here to see answer by stanbon(75887)

Question 477558: How do you factor completely x^2*y^2-36
Click here to see answer by tinbar(133)

Question 477868: I need the range and domain of the funchtion
h(x)= 3sqrt x-5
Dose x have to be greater 5?
Click here to see answer by nerdybill(7384)

Question 477971: what makes a function special as it relates to all other relation
Click here to see answer by Theo(13342)

Question 478060: Give the domain, range, and zeros of the function f(x)=sqrt(9-x^2)
Would really appreciate any help, Thanks
Click here to see answer by lwsshak3(11628)

Question 478871: Let f(x) = 3x + 2 and g(x) = 7x + 6 of f*g.
Then describe the domain of f*g (isn't it all real numbers)
And what about this one:

Let f(x) = 3x - 6 and g(x) = x - 2. Find f/g.
Then describe the domain of f/g.
Thanks in advance!
Click here to see answer by ewatrrr(24785)

Question 479224: f(n)= -2n+3

Click here to see answer by Alan3354(69443)

Question 479533: What is f−1 (-4x + 7) if f(x) = 3 � 2x?
Click here to see answer by stanbon(75887)

Question 479845: Find the domain and range of the relation and detrmine if its a function
(6,1),(-10,-4),(2,-1),(3,-8)
Click here to see answer by nerdybill(7384)

Question 480146: Find f(6) if f(x) = x2 � 3 + x

Click here to see answer by nerdybill(7384)

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