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

Tutors Answer Your Questions about Functions (FREE)

Question 1046635: Give the vertex, axis, x-intercepts, y-intercept, domain, and range of the graph of the function:
f(x)= (-2/3)((x-6))^2 + 7
Click here to see answer by Fombitz(32388)

Question 1046707: how do you solve
f(x)= x+6
g(x)=x-6

Click here to see answer by Alan3354(69443)

Question 1046707: how do you solve
f(x)= x+6
g(x)=x-6

Click here to see answer by richard1234(7193)

Question 1046728: f(x)=x+7
1,2,3, and 4 for domain
Click here to see answer by ikleyn(52797)

Question 1046875: What is the inverse equation for:
h(x)= (2x-1)/(x+1)
Click here to see answer by stanbon(75887)

Question 1046886: Can you please help me solve f(x)=x^2-3x. Find f(-6). Thanks
Click here to see answer by josgarithmetic(39618)

Question 1046806: Find f and g so that h(x)= (f o g)(x). Neither function may be the identity function f(x) =x
H(x)= ((5)/(x^2))+1
Click here to see answer by josgarithmetic(39618)

Question 1046943: Find each of the following for the fundctions f(x)=x^2-2 and g(x)=x^2+2
(fg)(2)=
(f-g)(x)=

(f*G)(x)=

Please note that the star in between the f and g at the bottom should be a small circle. However, my computer does not permit me to write it that way.
Click here to see answer by josgarithmetic(39618)

Question 1046921: Hi what is the function of 4(x^2)+2x-2 if -f(x)
Click here to see answer by ikleyn(52797)

Question 1046993: Please help me figure out:
a) f(x+h) where f(x)=4x+3
I know final answer is 4x+4h-3
But I don't know the steps!
Click here to see answer by Boreal(15235)

Question 1047003: f(x)= 7/√x+3
The domain is _____ in interval notation.
Click here to see answer by Timnewman(323)

Question 1047261: What is the largest solution to the equation g(x)=50?
Click here to see answer by Theo(13342)

Question 1047261: What is the largest solution to the equation g(x)=50?
Click here to see answer by solver91311(24713)

Question 1047308: Find the domain of each function.
1. g(x)=5x+1
2. g(x)=x-7
3. g(x)= /x
4. g(x)= /x+1
Click here to see answer by Boreal(15235)

Question 1047462: What is the domain and range of x=7?
Click here to see answer by MathLover1(20850)

Question 1047462: What is the domain and range of x=7?
Click here to see answer by ikleyn(52797)

Question 1047461: what is the domain and range of y=3?
Click here to see answer by josgarithmetic(39618)

Question 1047495: I need help with this setting up this question and I'm not sure what the format of the answer should be:
Let f(x)=sqrt(x+2) -x. Find all numbers x, if any, such that f(x)= -4
Click here to see answer by Boreal(15235)

Question 1047515: how do I find the slope of the line containing the given points
f(8)=2 and f(9)=-6
Click here to see answer by stanbon(75887)

Question 1047515: how do I find the slope of the line containing the given points
f(8)=2 and f(9)=-6
Click here to see answer by MathTherapy(10552)

Question 1047538: Cost to produce 17 toys is $731 and cost of 29 toys is $1247. If cost is considered to be c, and is a linear relation to an output qty, marked by q, find the cost equation. Am I right this is will be considered to be a function and we mark it as c(q)? How do I then solve this?
Click here to see answer by josgarithmetic(39618)

Question 1047534: I'm looking for a function to express this problem.
If equipment worth a value of $100,000 depreciates at 4.5% of its beginning value each year, find a function f(t) that shows the equipment value after t years have passed.
I have plotted coordinates for (0,100,000) and worked out one years worth of depreciation and plotted coordinates for (1, 95,500). I have drawn that on a graph but I'm stuck for what function it expresses.

Click here to see answer by josgarithmetic(39618)

Question 1047575: Find each value if f(x)=-2x+4
1.f(12). 2.f(6). 3.)2b)
Click here to see answer by Boreal(15235)

Question 1047536: I am making sculptures. Each sculpture costs $75 to make, and my weekly fixed costs are $80,400.
a: if I make n number of sculptures made per month, and T is total weekly cost, what is the function T(n)
b: If this week my costs are $135,183, how many sculptures were made?
Click here to see answer by jorel555(1290)

Question 1047622: I need help understanding this question. I'm plugging the values in for x but apparently that's not how to get the correct answer or I am doing it wrong.
Evaluate the function at the indicated values.
k(x) = −x2 − 2x + 3;

k(0), k(2), k(−2), k(2), k(a + 2), k(−x), k(x2)
Click here to see answer by stanbon(75887)

Question 1047685: (fog)(x)(gof), find f(x)=(3)/(1-8x), g(x)= (1)/(x)
Click here to see answer by stanbon(75887)

Question 1047672: A quadratic function is given by y=5x^2+7+11. For what domain values of y, the solution of x will be a real number?
Click here to see answer by josgarithmetic(39618)

Question 1047617: please help me to solve.
if f(x)=7 show that x^2-√ 5x-1=0 where f(x)=(1+x^4+x^8)/x^8
Click here to see answer by ikleyn(52797)

Question 1047756: If v=270(3^-d/12) where v is the value of one unit, and d being the amount of units demanded. At what value will the demand be 10 units. How many units will be demanded if the value is $5?
Click here to see answer by josmiceli(19441)

Question 1047836: What is if you are given this function: and
A.
B.)
C.)
D.)
Click here to see answer by ewatrrr(24785)

Question 1047839: What is if you are given these functions: and
A.)
B.)
C.)
D.)

Click here to see answer by ewatrrr(24785)

Question 1047841: What is (f/g)(x) if you are given these functions: f(x) = x� - 9 and
A.)
B.)
C.)
D.)

Click here to see answer by advanced_Learner(501)

Question 1047845: What is (x) if you are given these two functions: and
A.)
B.)
C.)
D.)

Click here to see answer by MathLover1(20850)

Question 1047845: What is (x) if you are given these two functions: and
A.)
B.)
C.)
D.)

Click here to see answer by advanced_Learner(501)

Question 1047934: what is the inverse function of f(x)=3+5x?
Click here to see answer by josgarithmetic(39618)

Question 1047985: X^3-6X^2+5X-1 find manually the domain
Click here to see answer by Edwin McCravy(20056)

Question 1047985: X^3-6X^2+5X-1 find manually the domain
Click here to see answer by ikleyn(52797)

Question 1048038: What makes this statement true or false?
If and then (f ○ g)(x) = (g ○ f)

Click here to see answer by ikleyn(52797)

Question 1048045: h(t) = t^2 − t + 5 find h(3).
Click here to see answer by advanced_Learner(501)

Question 1048054: Can you show me how to solve one problem so I can help my son with his homework. Am example f(c-5). If f(x)=-2x-3.
Click here to see answer by stanbon(75887)

Question 1048054: Can you show me how to solve one problem so I can help my son with his homework. Am example f(c-5). If f(x)=-2x-3.
Click here to see answer by advanced_Learner(501)

Question 1048066: What is the value of f(16)- f(0) when f(x)=4x�8 ?
Click here to see answer by stanbon(75887)

Question 1048069: What makes this statement false?
if and then (f ○ g)(x) = (g ○ f)
Click here to see answer by stanbon(75887)

Question 1048158: f(x) = x2 + 7 Find f(a + 3).

Click here to see answer by jim_thompson5910(35256)

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