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

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Question 445223: Which of the following is the domain of the function G(F(x))?
F(x) = x + 6, G(y) =4/(square root)y
G(F(x)) =4/(square root)x+6
A. All numbers less than -6
B. All numbers less than or equal to -6
C. All numbers greater than -6
D. All numbers greater than or equal to -6
Click here to see answer by stanbon(75887)

Question 445941: (2x+7)(2x-3)
Click here to see answer by rfer(16322)

Question 446030: f(t)=√(t^2+1)
Click here to see answer by stanbon(75887)

Question 446212: Please help me wit his problem. Need to find the domain and the range:
f(x) = 3x-5 find f(5) find f(3)
Thank you
Click here to see answer by stanbon(75887)

Question 446213: Please help me solve this.
graph y=3x-5
thank you

Click here to see answer by stanbon(75887)

Question 446213: Please help me solve this.
graph y=3x-5
thank you

Click here to see answer by rwm(914)

Question 446400: Find indicated outputs for
(((F(x)=3xsquared -4x)))
I think f(0)=0
f(-1)=?
f(2)=?
how do i do these i can't remember? Do i just put the number like-1 in for x where states f(x)?
Click here to see answer by richard1234(7193)

Question 446545: Please help me find the domain and range for this problem.
F(X) = X^2 +1
THANK YOU
Click here to see answer by mohammadrezai(14)

Question 446994: Show the location of the x-intercept of the graph of the equation y = 3x - 6.

Click here to see answer by rfer(16322)

Question 447166: state the domain: f(x)= 5x-4/10x^3-6x^2
Click here to see answer by htmentor(1343)

Question 447424: h(x)=x-1/x3-9x
find the domain of the function. thank you in advance
Click here to see answer by ewatrrr(24785)

Question 447583: the vertex and x-intercepts y=(x-4)(x+2)
Click here to see answer by MathLover1(20850)

Question 447792: The function f(x)= 40(0.8)^x gives the amount of a medication in milligrams present in a patient's system x hours after taking a 40-mg dose. In how many hours will there be less than 2 mg of the drug in a patient's system?
Click here to see answer by nerdybill(7384)

Question 447827: How do i do this???
Click here to see answer by richard1234(7193)

Question 447989: I'm supposed to evaluate this function and I can't figure it out.
f(x)=4x^2-1/x^2 (a) x=5 (b) x=-5
I keep coming up with
(2x^2-1)(2x^2+1)/x^2
and it's wrong. Can someone help please?
Click here to see answer by rwm(914)

Question 448411: Which of the following does not represent y as a function of x?
y=4
x=-3
Click here to see answer by edjones(8007)

Question 448473: Find the domain of this function f(x)= Under a radical 16-x^2
Click here to see answer by htmentor(1343)

Question 448637: for our math homework we are supposed to find the domain of the functions, but I am really confused.... would you be able to walk me through the steps of finding the domain of this problem? y=-5 times the square root of x
Thanks,
GB

Click here to see answer by nerdybill(7384)

Question 449344: A line passes through the point (1,3) and has a slope of 4. Write an equation for the line.
Find the equation of the line that is perpendicular to the first line and passes throgh (1,3).
Click here to see answer by ankor@dixie-net.com(22740)

Question 450090: if f(x)=x^2+7 then what is f(x-h)
Click here to see answer by MathLover1(20850)

Question 450332: If you know a circle's area, you can use the formula r = √a/π to find the radius. What is the radius of a circle whose area is 60 cm^2? Use 3.14 for π. Round the answer to the nearest hundredth of a centimeter.
Click here to see answer by richard1234(7193)

Question 450335: If g(x) = √4x - 1, what is g(9) ?
Click here to see answer by MathLover1(20850)

Question 450453: The function, p(d)=1+d/33, gives the pressure, in atmospheres (atm) at a depth d in the sea ( d is in feet). Note that p(0)=1 atm, p(33)=2, and so on. find the pressure at 50 feet.

Click here to see answer by edjones(8007)

Question 451041: if x be real , then the maximum value of 5+4x-4xsquare will be equel to
Click here to see answer by robertb(5830)

Question 451329: Mike works on commision selling electronic equipment. the linear function I(s)=0.06s+25,900 describes his annual income I when his total sales for the year are s. At what level of sales will mike's income be $51,100?
Click here to see answer by jorel1380(3719)

Question 451555: How do i solve "If f(2)=0 and f(x)=3x^2+kx-4,find k" i need help solving this step by step.
Click here to see answer by robertb(5830)

Question 451555: How do i solve "If f(2)=0 and f(x)=3x^2+kx-4,find k" i need help solving this step by step.
Click here to see answer by tinbar(133)

Question 451554: How do i simplify 2i to the 3rd power?

Click here to see answer by robertb(5830)

Question 451597: I really need help with this question.
g(x)=6/1-9x
I understand the denominator should be zero (0) but I dont know where to go from there, any help will be appreciated
thanks
Click here to see answer by Alan3354(69443)

Question 451758: find the domain of the function
p(x)=xsecond power - 2x +7
is it {x|x is a real number and x>0?
Click here to see answer by stanbon(75887)

Question 451768: find the slope and y intercept
f(x)= -6x -10
is the Y intercept 4?
Click here to see answer by Alan3354(69443)

Question 451878: Problem: g(x)= (x + 7)/(x^2-4)= Domain: (- infinity, -2)u (-2, 2) u (2, infinity)
Find the equations of both vertical and horizontal asymptotes of the function.
Show work or Explain in words:
Click here to see answer by robertb(5830)

Question 451874: Problem: f(x) = (3x -1)/ (x + 4)= Domain (- infinity, -4) u (-4, infinity)
Find the equations of both vertical and horizontal asymptotes of the function.
Please show work or explain in Words.
Click here to see answer by robertb(5830)

Question 451923: How can i simplify (2^3-6^0)^-1
Click here to see answer by stanbon(75887)

Question 451931: Please help me simplify this problem .
Click here to see answer by stanbon(75887)

Question 452051: If y = 2x + 50 and x = 3t , express y as a function of t.
Click here to see answer by AHBK(13)

Question 452226: f(x)= -3x^2+5, what is the range of the function?
Click here to see answer by stanbon(75887)

Question 452348: Trains A and B are traveling the same direction on parrarel lines. Train A is traveling 100 mph and train B is traveling 120 mph. Train A passes the station at 5:25 am and train B passes station at 5:37 am, what time will train B catch up with train A?
Click here to see answer by ankor@dixie-net.com(22740)

Question 452409: find the specified asymptotes of the following functions, recall the asymptotes are lines therefor the answer must be given as an equation of a line.

a.Find the equation of the vertical a asymptotes of the function f (x) = 4/x+5
b. Find the equation of the horizontial asymptote of the function g (x) = 5x^2 -4/x+1
c. Find the equation of both the vertical and horizontal asymptotes of the function f (x) = 3x-1/x+4

I need help by tonight 12:00 am please...
Click here to see answer by lwsshak3(11628)

Question 452404: Find the domain of the function and express the answer in interval not action explain in words..
A) f (x) = 4x^2 - 7x +3
B. g (x) = 10/x+7
C. f (x) = ^ 4x-16 ( this is over the sign that looks like a check mark
d. g (x) = 2x/x-3
e. f (x) = 3x-9
Explain in words and show all work..
Click here to see answer by lwsshak3(11628)

Question 452361: find the equation of both the verical and horizontal asymptotes of the function:f(x)=3x-1/x+4
Click here to see answer by lwsshak3(11628)

Question 450798: find the domain of x+4/x^2+x-6
Click here to see answer by lwsshak3(11628)

Question 450482: Find the domain of the square-root function: y = √ 2(x+4) - 3
Click here to see answer by lwsshak3(11628)

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