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

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Question 509888: How would I solve this function f(-4)= by looking at a graph?
Click here to see answer by richard1234(7193)

Question 509959: What is the domain of 14(x+2)?

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Question 510167: What is the relationship between {(1,4) (2,7) (3,10) (4,13)} ?
Write an equation
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Question 510880: The question is "Guess my Rule" I can't get this one. I think the zero is throwing me off.

Starting Value (Domain)
2
4
6
8
Final Value (Range)
0
12
32
60
What is the functional Rule for each?
Click here to see answer by scott8148(6628)

Question 510885: f(x)= x squared - 2x + 3 ; find f(x+h)

Click here to see answer by Earlsdon(6294)

Question 510925: Find the domain of (f/g)(x) when f(x)=2x^2-5x and g(x)=x^2-2x-7
Click here to see answer by stanbon(75887)

Question 511237: Using the function machine (g machine) what is the output g(-7)= and g(5/2) =
what is the functinal values for the problem h(x)=2 h(0)= h(-10)=
find three ordered pair that satisfy the equation y =x + 4

Draw the graph for y = x^2 + 5x + 5
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Question 511228: We need to know the steps for
3x-x/a=c
Click here to see answer by Alan3354(69443)

Question 511227: what is the domain of the function ---> f(x)=4x/(x^2+2x-6)
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Question 511371: given the rational function f(x)= 1 over(divided by) 3x+1 find the value: when f(5/3)
Click here to see answer by Maths68(1474)

Question 511482: Dear Sir/Mam:
I am struggling with Algebra as an older student. Here is my question, but most importantly I am looking for the Why in the answer. Please help me solve this equation:
two minor league baseball players got a total of 376 hits. Washington had 12 more hits than sanchez. Find the number of hits for each player.
Thank you for your valuable time.

Click here to see answer by oberobic(2304)

Question 511517: What is the domain in interval notation for f(x)=x/7x^2+1?
Click here to see answer by John10(297)

Question 512120: State the domain of the function f(x)=square root of x^3-5x^2
Click here to see answer by stanbon(75887)

Question 512479: I am a parent who trying to help her son and not doing to well. One of the problems is 1 3/5 x 2 1/2. It comes out to 4/1, but tdoes that mean it then would a whole 4 or 4/1?
Thank you
Click here to see answer by ptaylor(2198)

Question 512480: Is the answer to 4/5 x 10/6 divided by 1/2 8/3? I'm a mom who is trying to help her son.
Thank you
Click here to see answer by ptaylor(2198)

Question 512658: How to solve 5x+14-2x=9-(4x+2)
Click here to see answer by rfer(16322)

Question 512718: y=1/4x + 1 with domain x > 0. Identify the range

Click here to see answer by stanbon(75887)

Question 513000: (This is a Re-post)
Hello, Was wondering if someone could shed some light on this for me:
g(x)=5/4-5x (the 5 is on top of the fraction bar, and the 4-5x is underneath the entire fraction bar.)
Choose the correct domain.
A. {x\x is a real number and x ≠ 5}
B. {x\x is a real number and x ≠ 0}
C. {x\x is a real number and x ≥ 4/5}
D. {x\x is a real number and x ≠ 4/5}
I'm not even sure what the ≠ means.
Click here to see answer by htmentor(1343)

Question 513052: If f(x) = 3x^2-5, find f(x+h)-f(x)/h
Click here to see answer by Tatiana_Stebko(1539)

Question 513089: If f(x) = x^2; find f(x+1)
am I on the right track?
f(x+1)^2
(x+1)(x+1)
x^2+2x+1
Click here to see answer by Edwin McCravy(20056)

Question 513212: -5 -(15y - 1) = 2(7y - 16) - y
Click here to see answer by umail08(87)

Question 513211: 8(4u - 1)-12u = 11(2u - 6)
Click here to see answer by umail08(87)

Question 513210: 2(6d + 3) = 18 - 3(16 - 3d)
Click here to see answer by umail08(87)

Question 513209: 4x + 5 (7x - 3) = 9 (x - 5)
Click here to see answer by umail08(87)

Question 513280: Give the domain and range of the function:

Click here to see answer by josmiceli(19441)

Question 513208: 9(11 - k) = 3(3k - 9)
Click here to see answer by umail08(87)

Question 513267: solve f(x)=-1/2x�+3x-5/4
Click here to see answer by stanbon(75887)

Question 513411: Find the domain of g(x)=sqrt(1-x)
its a homework and i cant figure it out
my options are
a. -infinity, 1
b. 1, infinity
c. and all real numbers

Click here to see answer by tinbar(133)

Question 513656: find the domain of the following function:4x^2/x^2-3x+2
Click here to see answer by stanbon(75887)

Question 513733: state the domain of f(x)=(35)/(x-3)
Click here to see answer by stanbon(75887)

Question 513780: Let f(x)= x-2, g(x)= square root of x, and h(x)=1/x. Find an equation defining each function and state the domain of the function of the following:
A). f of g
B). f of h
C). h of g
D). f of f
E). h of f of g
Click here to see answer by solver91311(24713)

Question 513807: For the function f(x) = |2x - 7| + 3, find f(6).

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Question 514134: Can you evaluate 5x+4 for x=0 and x=1? Is this an expression or an equation. Explain
Click here to see answer by richard1234(7193)

Question 514271: Find (fog)(x) and (gof)(x) for the pair of functions

Click here to see answer by stanbon(75887)

Question 514287: Find the domain of the function given by
g(x) =
Click here to see answer by stanbon(75887)

Question 514310: Take a look at the following table:
X -2,-1,0,1,2
f(x)-5,-2,1,4,7
a. Write out an equation for f(x). Assume the function is linear.
b. What is the slope? Is it negative or positive? What information do we get from the slope?

Click here to see answer by stanbon(75887)

Question 514418: if f(x+1)=f(x)/x and f(3)=5, what is the value of f(7)?
Click here to see answer by solver91311(24713)

Question 514421: if f(x+1)=f(x)/x and f(3)=5, what is the value of f(7)?
Click here to see answer by solver91311(24713)

Question 514421: if f(x+1)=f(x)/x and f(3)=5, what is the value of f(7)?
Click here to see answer by josmiceli(19441)

Question 514444: if the domain is 1,3,5,7 and the range is 1,2,3,4 what is the rule of the function
Click here to see answer by stanbon(75887)

Question 514484: If f(x) = sqrt(x) and g(x) = x - 2 find (f og)(27)
Click here to see answer by stanbon(75887)

Question 514935: g(x)=(x+5)(x+1)
h(x)=3x-8
find g/h(-6) and then find all values that are not in the domain of g/h.
Click here to see answer by stanbon(75887)

Question 515059: Indicate whether the conjecture is true or false. If false, provide a counterexample.
If a/b > 0, then a > o and b > 0.

I say this is true.

I am not sure, however if I am wrong can you show an example to help me understand. Thank you for your time regarding this question.

Click here to see answer by stanbon(75887)

Question 515222: My question: Find the difference quotient for f(x) = 7x^2-9x+2
This is what I've come up with, I want to make sure I understand it and did it right!
f(x+h) = 7(x+h)^2 - 9(x+h) + 2
= 7(x+h)(x+h) - 9x-9h + 2
=7[x^2 + 2hx+h^2] - 9x-9h + 2
=7x^2 + 14hx+7h^2-9x-9h+2-(7x^2-9x+2)
=7x^2 + 14hx+7h^2-9x-9h+2-7x^2+9x-2/h
=14hx+7h^2-9h/h
=h(14x+7h-9)/h
=(14x+7h-9) Final Answer!
Wow, these wear me out, I'm praying I did it right or at least close!!
Thanks so much,
Tracy
Click here to see answer by jim_thompson5910(35256)

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