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

Tutors Answer Your Questions about Functions (FREE)

Question 380579: Good morning!
I have to find the inverse of the function: f(x)= 4x+1/3.
Thanks so much for all your help!
Denise
Click here to see answer by Jk22(389)

Question 380586: ***I need the steps to solve this problem by Sunday*** Please HELP!!!
The answer to the problem is: S(h)=6h-50
The problem is:
SKYLINE ORDINANCE A city council is proposing a new skyline ordinance. It would require the setback (S) for any building from a residence to be a minimum of 100 feet, plus an additional 6 feet for each foot of height above 25 feet. Find a linear function for (S) in terms of (h).
Thank you!
Click here to see answer by stanbon(75887)

Question 380573: Good Saturday Morning! I am working on some problems this morning....
I need to find the zeros of the function by factoring: x^3-36x/(x+3)^2.
Thanks so much!
Denise
Click here to see answer by Fombitz(32388)

Question 380619: ***I need the steps to solve this problem by Sunday*** Please HELP!!!
POPULATION DENSITY The population density D (in people/mi^2)in a large city is related to the distance x from the center of the city by D=5000x/(x^2+36). In what areas of the city does the population density exceed 400people/mi^2?
Thanks!!
Click here to see answer by nerdybill(7384)

Question 380774: How do you find the derivative of ((x^2-1)/(2x^3+1))^4
Click here to see answer by richard1234(7193)

Question 381153: Good Sunday Afternoon!
I am trying to find the zeros of the function by factoring or algebraically:
x^3-36x/x(x^2-9)
Thanks!
Denise
Click here to see answer by jim_thompson5910(35256)

Question 381187: the function f(x)=(5x/x+7) is one to one find the inverse of f and the range of f using the inverse.
Click here to see answer by Jk22(389)

Question 381286: 9)Find the domain of the function.
f(x)=|x-3|
Is it:
A. [0,∞)
B. (-∞,∞)
C. (-∞,0)∪(0,∞)
or D. [-3,3]

Click here to see answer by Fombitz(32388)

Question 381390: Write an equation for each of the following situations:
(a) Find the area A of a rectangle with a height x and a width twice the height.
(b) What is the cost C of going to the movie, if a ticket for each of the x adults is $6 and a ticket for each of the y children is $4?
Click here to see answer by mananth(16946)

Question 381758: find functions F and G so that FoG=H
H(x)=(5-2x3)2
Click here to see answer by stanbon(75887)

Question 381828: Find the domains of ln(f(x) and exp(f(x))

Click here to see answer by robertb(5830)

Question 382337: If v(x)=6x^3+4x^2-3 and w(x)=2x^2-x+4 find v(x)-w(x).
Click here to see answer by solver91311(24713)

Question 382526: Does the set of points {(1,2),(3,2),(6,10),(-3,5)} describe a function? How do you know?
Click here to see answer by stanbon(75887)

Question 382754: Find the domain of the following function and express in interval notation
X+7
-------
x^2-49
Click here to see answer by Fombitz(32388)

Question 382739: Please help me solve this equation: sqrt(3+x)+sqrt(3-x)
Click here to see answer by Fombitz(32388)

Question 382812: Find the Domain of the following function:
h(x)=7/x2-8x-20
Click here to see answer by robertb(5830)

Question 382815: Find the domain of the following function:
f(x)=√ 1-5x
Click here to see answer by robertb(5830)

Question 382802: Given the function k described by k(x) =x +10, find each of the following.
K(0)= ___ ?

Click here to see answer by rfer(16322)

Question 382970: A cat leaps trying to catch a flye. The motion of the cat can be modeled by h(d)=-32d^2+16d. The fly is staying at least 2.5 feet away from the ground. Will the cat get high enough to catch the fly?
Click here to see answer by stanbon(75887)

Question 383066: The cost of producing x items (in hundreds) can be modeled by C (x)= 1/20x^2-4/5x+9 1/5
where C is the cost in thousands of dollars. how many items would you produce to minimize the cost and what would that cost be?
Click here to see answer by Jk22(389)

Question 383070: find an equation of a parabola whose vertex is (-4,6) and has a solution point of (1,81).
Thanks for the help in advance really need it ha.
Click here to see answer by scott8148(6628)

Question 383385: how do i identify the domain and range of this problem??
{-2,5),(0,3),(2,5)}
Click here to see answer by richard1234(7193)

Question 383375: 4x - 5y = 7
is this consistent or inconsistent?
Click here to see answer by Fombitz(32388)

Question 383535: I need help finding the inverse of this function : g(x) = (7/3) x + 2.
Any help would be greatly appreciated!! Thank you.
Click here to see answer by Fombitz(32388)

Question 383534: y = x^2 / (x2-16)
I could use some help finding the domain and range. Any help would be greatly appreciated!!
Click here to see answer by Jk22(389)

Question 383537: I could really use some help finding the inverse of this function: h(x)=(6x-5)/2.
Any help you be greatly appreciated. Thank you!!!
Click here to see answer by nerdybill(7384)

Question 383537: I could really use some help finding the inverse of this function: h(x)=(6x-5)/2.
Any help you be greatly appreciated. Thank you!!!
Click here to see answer by stanbon(75887)

Question 383645: write the (4-3i)(-5+2i) in standard form
Click here to see answer by Fombitz(32388)

Question 383646: write the 8/9-2i in standard form
thank you for the help
Click here to see answer by Alan3354(69443)

Question 383687: it says write a function for the table of values.
this is what it looks like
x | y

-2 -3
-1 -1
0 1
1 3
2 5

Click here to see answer by stanbon(75887)

Question 383533: y = 25(-7x-4)^64
I really need some help finding the domain and range on this one. Any help would be greatly appreciated.
Click here to see answer by scott8148(6628)

Question 383763: find the domain of the function f (x) = square root of 12 − 3x^2
Click here to see answer by Edwin McCravy(20055)

Question 383974: Good Evening! I am working on some problems for homework.
Find all real zeros of the polynomial function: f(x)= -6x^4+54^2
Thanks!!
Jim
Click here to see answer by edjones(8007)

Question 384089: solve: .2(x-2)+.5(x-5)=0
Click here to see answer by Fombitz(32388)

Question 383990: find the domain of
f(x)= the square root of 3/x-2
Click here to see answer by Fombitz(32388)

Question 384199: To go bowling, it costs $2 to rent shoes and then $3.25 for each game bowled. Which of the following functions gives the total cost to bowl g games?
f(g) = 5.25g
f(g) = 2 + 3.25g
f(g) = 2g + 3.25g
Click here to see answer by stanbon(75887)

Question 384332: What is the slope of a binomial 2x+3''
--------------------------------------------------------------------------------

Click here to see answer by user_dude2008(1862)

Question 384409: consider the function: f(x)= x^2-4/x-5 (a). find all values that makes the function undefined
that makes the function undefined

Click here to see answer by ewatrrr(24785)

Question 384399: domain of y(9-x^2)=9+x^2
Click here to see answer by ewatrrr(24785)

Question 384555: : given the function f(x)=8x+5, find each of the following f(10),f(-1),f(0)
Click here to see answer by tutorcecilia(2152)

Question 384616: Find the domain
f(x)= 3x-8/4x+20
Click here to see answer by robertb(5830)

Question 385397: I don't see why this problem wouldn't be a function can someone please explain it to me?
Let �M� be the set of motor vehicle owners who are registered in Ohio. Let �R� be the set of all motor vehicle registration numbers. Is the correspondence between M and R a function? Why, or why not?
Click here to see answer by Fombitz(32388)

Question 385441: Can anyone help me with these problems? I would like to see the steps rather than a direct answer. Thank you.
Consider the function: f(x)={3x-1, x≤2}
{-x^2-1, x>2}
a) Which graph would have the open circle at the end?
b) What is the value of the function at x=2?
c) What is the value of f(3)?
d) What is the value of f(-4)?
Click here to see answer by stanbon(75887)

Question 385450: I need to know the steps to this problem. Any help is greatly appreciated.
If v(x)=6x^3+4x^2-3 and w(x)2x^2-x+4 find v(x)-w(x)
Click here to see answer by stanbon(75887)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660