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

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Question 1016024: Hi,
I'm really confused as to how to find this:
Is X-8=0 and 4y=9x function? Thanks!
Click here to see answer by josgarithmetic(39613)

Question 1016071: Find domain f(x) =sq root 16-x
Click here to see answer by ikleyn(52747)

Question 1016122: Good morning,
Can someone please help me with this problem.
f(x)=5x+4;g(x)=7x-1
and solve for (f/g)(x)
Thank you
Click here to see answer by rothauserc(4718)

Question 1016125: Can someone please help me with this question.
x/x�+1 and solve for f(-x)
Thank you so much
Click here to see answer by rothauserc(4718)

Question 1016137: Can someone please help me with this question.
f(x)=3x�+3x-3 and solve for f(x+h)
Thank you so much
Click here to see answer by Alan3354(69443)

Question 1016138: Can someone please help me.
x/x�+1 and solve for f(-x)
Thank you so much
Click here to see answer by Alan3354(69443)

Question 1016134: Can you help me with this problem.
f(x)=5x+4; g(x)=7x-1 and solve for:
(f+g)(2)
Thank you so much

Click here to see answer by Alan3354(69443)

Question 1016139: Can someone please help me.
6x+7 divide by 5x-6
and solve for -f(x)
Thank you so much
Click here to see answer by Alan3354(69443)

Question 1016140: Can someone please help me.
f(x)=4x+7 divide by 7x-4; g(x)=8x/7x-4 and solve for (f-g)(x)
Thank you so much
Click here to see answer by Alan3354(69443)

Question 1016141: I am quested with this one
f(x)=5x+4; g(x)=7x-1 and solve for (f*g)(3) I got 518 but that wasn't right
this is what I had35x�+23x-4 and when I put in 3 I got 518 but that was wrong.
Click here to see answer by Theo(13342)

Question 1016127: Can someone please help me with this problem.
f(x)3√x ; g(x)=3x
and solve for (g0g)(0)
Thank you so much for helping me
Click here to see answer by Fombitz(32388)

Question 1016147: Can I get help with this problem please.
f(x)=5x+4; g(x)=7x-1 and solve for (f/g)(1)
I started with this 5x+4/7x-1 and got 5/7+33/7(7x-1) and that was wrong; just confused I believe on what they wanted.
Click here to see answer by Alan3354(69443)

Question 1016126: Can someone please help me solve this problem.
f(x)=√x;g(x)5x+2
And solve for (f0f)(x)
Thank you so much
Click here to see answer by Fombitz(32388)

Question 1016201: Can someone please help me.
f(x)=x/x�+1 and solve for f(x+2)
I know its x+2 on top but confused on how you do the bottom part of this problem.
Thank you so much.
Click here to see answer by Boreal(15235)

Question 1016204: Can I get help with this problem please.
f(x)=6x+7 over 5x-6 and solve for f(x+2)
I believe you would put 6(x+2)+7 over 5(x+2)-6
But not sure.
Thank you
Click here to see answer by Boreal(15235)

Question 1016207: I need help with this problem
f(x)=4x+7 over 7x-4 and g(x)=8x over 7x-4 and solve for
(f/g)(x)

Click here to see answer by Alan3354(69443)

Question 1016209: I need help with this problem please.
f(x)=5x+3; g(x)=x� and solve for (g0g)(x)
Thank you so much
Click here to see answer by Alan3354(69443)

Question 1016209: I need help with this problem please.
f(x)=5x+3; g(x)=x� and solve for (g0g)(x)
Thank you so much
Click here to see answer by fractalier(6550)

Question 1016218: Peter bought an antique piece of furniture in 2000 for $10,000. Experts estimate that its value will increase by 12.12% each year. Identify the function that represents its value. Does the function represent growth or decay?
A). V(t)=10000(1.1212)^t ; growth
B). V(t)=10000(1.1212)^t ; decay
C). V(t)=1000(0.8788)^t ; growth
D). V(t)=10000(0.8788)^t ; decay
Click here to see answer by fractalier(6550)

Question 1016219: The value of a camcorder bought new for $2000 decreases 20% each year. Identify the function for the value of the camcorder. Does the function represent growth or decay?
A). V(t)=2000(0.8)^t ; growth
B). V(t)=2000(0.8)^t ; decay
C). V(t)=2000(1.2)^t ; growth
D). V(t)=2000(1.2)^t ; decay
Click here to see answer by fractalier(6550)

Question 1016363: Can I please get help with this problem.
x/x-4 and g(x)=-7/x and solve for (gof)(x)
Thank you so much
Click here to see answer by rothauserc(4718)

Question 1016377: What is the slope of the line?

slope = 1/3
slope = -3
slope = 3
https://pittsburgh.owschools.com/media/g_alg01_2015/3/t20.gif
Click here to see answer by Fombitz(32388)

Question 1016367: Can I get help with this question please.
3/x-8; g(x)=1/x and solve for (fof)(x)
Thank you so much
Click here to see answer by Boreal(15235)

Question 1016398: Can someone please help me.
3/x-8; g(x)=1/x and find (gog)(x)=
Thank you so much
Click here to see answer by fractalier(6550)

Question 1016397: Can someone please help me with this problem. Thank you
f(x)=x�+7 and g(x)=√x-2 and find (g0f)(x)
Thanks again
Click here to see answer by fractalier(6550)

Question 1016417: Find f �(x) if
f(x) = 5x^8 - 1x^4 + 9
and evaluate f �(1).(Keep 2 decimal places)
Click here to see answer by fractalier(6550)

Question 1016419: Find f �(x) if
f(x) = 4 e^x - 6 x^2 + 1
and evaluate f �(1).(Keep 2 decimal places)
Click here to see answer by fractalier(6550)

Question 1016418: Find f ��(x) if
f(x) = 9 x^3 - 1 x^4 + 9
and evaluate f ��(1). (Keep 2 decimal places)

Click here to see answer by fractalier(6550)

Question 1016415: Find f �(x) if
f(x) = 3 x^-1 + 5 x^8 - 1
and evaluate f �(1). (Keep 2 decimal places)
Click here to see answer by fractalier(6550)

Question 1016414: Find f �(x) if
f(x) = 6x^3 + 5sin(x) - 4
and evaluate f �(2).(Keep 2 decimal places)
Click here to see answer by fractalier(6550)

Question 1016413: Find f �(x) if
f(x) = 8ln(x) - 7cos(x) + 1
and evaluate f �(1).(Keep 2 decimal places)
Click here to see answer by fractalier(6550)

Question 1016409: Find f �(x) if
f(x) = 4 e^x - 6 x^2 + 1
and evaluate f �(1).(Keep 2 decimal places)

Click here to see answer by fractalier(6550)

Question 1016408: Find f ��(x) if
f(x) = 9 x^3 - 1 x^4 + 9
and evaluate f ��(1). (Keep 2 decimal places)
Click here to see answer by Alan3354(69443)

Question 1016405: Find f �(x) if
f(x) = 3 x-1 + 5 x8 - 1
and evaluate f �(1). (Keep 2 decimal places)

Click here to see answer by Alan3354(69443)

Question 1016407: Find f �(x) if
f(x) = 5x8 - 1x4 + 9
and evaluate f �(1).(Keep 2 decimal places)
Click here to see answer by Alan3354(69443)

Question 1016406: Find f �(x) if
f(x) = 5 tan(x) - 2 ex - 3
and evaluate f �(1). (Keep 2 decimal places)
Click here to see answer by Alan3354(69443)

Question 1016411: Given function
f(x) = 4 x^2 - 5 x^1 + 1 ,
find the critical numbers of the function.
Enter the largest non-zero one. (Keep 2 decimal places)

Click here to see answer by richard1234(7193)

Question 1016366: Can I get help with this question please
x/x-4;g(x)=-7/x and solve for (fof)(x)

Thank you so much
Click here to see answer by ikleyn(52747)

Question 1016361: Can I please get help with this problem.
3/x-8, g(x)=1/x and solve for (fof)(x)
Thank you
Click here to see answer by ikleyn(52747)

Question 1016416: Find f �(x) if
f(x) = 5 tan(x) - 2 e^x - 3
and evaluate f �(1). (Keep 2 decimal places)
Click here to see answer by ikleyn(52747)

Question 1016533: Please help me solve this function.
Given that f(x)=−3x^3−3x−6, evaluate f(1).
Click here to see answer by FrankM(1040)

Question 1016533: Please help me solve this function.
Given that f(x)=−3x^3−3x−6, evaluate f(1).
Click here to see answer by ikleyn(52747)

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