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

Tutors Answer Your Questions about Functions (FREE)

Question 1084846: what is the domain of A=f(r)=3.14r^2

Click here to see answer by josgarithmetic(39618)

Question 1085213: What is the equation of a horizontal line passing through the point (1, 14)?

Click here to see answer by josgarithmetic(39618)

Question 1085213: What is the equation of a horizontal line passing through the point (1, 14)?

Click here to see answer by ikleyn(52794)

Question 1085252: The dimensions of the rectagular prism are destined by functions f(x)=2x + 4 (length), w(x)=(x+3) width, and h(x) = 3x+1(height)
What is the volume of the prism?

Click here to see answer by MathLover1(20850)

Question 1085413: For the sequence below, determine whether it is arithmetic or geometric. State the general term and t6. USE FRACTIONS WHERE NECESSARY.
375, 75, 15, 3, ...
Click here to see answer by ikleyn(52794)

Question 1085418: For the sequence below, determine whether it is arithmetic or geometric. State the general term and t6. USE FRACTIONS WHERE NECESSARY.
375, 75, 15, 3, ...
Click here to see answer by ikleyn(52794)

Question 1085417: You visit the Grand Canyon and drop a penny off the edge of a cliff. The distance the penny will fall is 16 feet the first second, 48 feet the next second, 80 feet the third second and so on in an arithmetic sequence. What is the total distance the object will fall in 9 seconds?
Click here to see answer by Alan3354(69443)

Question 1085419: Find the sum of the first 20 terms of the arithmetic series with T1= 31 and T20=109
Click here to see answer by ikleyn(52794)

Question 1085437: For J(t)=t^3-4,find J(4)
Click here to see answer by ikleyn(52794)

Question 1085444: Evalution of function solve this given
g(x)=x�+3
Click here to see answer by Fombitz(32388)

Question 1085443: Evaluation of function
How to solve this given g(x)=x�+3?
Click here to see answer by Fombitz(32388)

Question 1085589: solve for x.
1. x/2(a+b) + 5/(a-b) = bx/(b^2-a^2)
Click here to see answer by Fombitz(32388)

Question 1085588: What is the maximum function value of f(x)=-1/4x^2+2x-3
Click here to see answer by Fombitz(32388)

Question 1085657: Pleas help me solve this problem:I1 is line 3x-4y +11=0 and l2 is line 2x-3y.The 3 lines I1,I2& I3 pass through the point A.without finding point A.find the equation of I3 if its slope is -2/3

Click here to see answer by ikleyn(52794)

Question 1085628: Given f(x)=7 to the root of x and g(x)=3x, find the given expressions.
(type an exact answer, using radicals as needed. simplify your answer.)
a)(fxg)(4)
b)(gxf)(2)
c)(fxf)(1)
d)(gxg)(0)
Click here to see answer by MathLover1(20850)

Question 1085626: Given f(x)=5x^2-4 and g(x)=6-1/2x^2. Find the following expressions.
a) (fxg)(4)
b)(gxf)(2)
c)(fxf)(1)
d)(gxg)(0) (simplify)
Click here to see answer by MathLover1(20850)

Question 1085629: Given f(x)=/x/ and g(x)=5/x^2+5, find the following expressions.
(Type and integer or or a simplified fraction)
a)(fxg)(4)
b)(gxf)(2)
c)(fxf)(1)
d)(gxg)(0)
Click here to see answer by MathLover1(20850)

Question 1085663: Please may you help me solve:f(x)=|6-2x|+|X-1|-2X giving the necessary arguments before graphing.what is the range of the function?whenf(x)>0?
Click here to see answer by ikleyn(52794)

Question 1085396: Let f(x) = 2x-3
and g(x) = 3x+2
1. find f(o) and g(f(o))
2. find (g.f)(x) and state the domain of g.f
3. Use the result in number 2 to evaluate (g.f)(o)
4. Find g(o) and f(g(o)
5. Find (f.g)(x) and state the domain of f.g
Click here to see answer by Alan3354(69443)

Question 1085625: Given f(x)=7x and g(x)=3x^2+4, find the following expressions.
a)(fxg)(4) b)(gxf)(2) c)(fxf)(1) d)(gxg)(0) (simplify)
Click here to see answer by josgarithmetic(39618)

Question 1085712: The function f(x 3x 5, when evaluated, gives a value of 19. What is the function's input value?
Click here to see answer by Fombitz(32388)

Question 1085699: 5x-8/x
Click here to see answer by Fombitz(32388)

Question 1085774: A question dealing with solving functions says, Find the indicated values, where g(t)=t^2-t and f(x)=1+x. They give you this formula, f(2g(1)).
Answer Choices are: 1, 3, 30, -1
Click here to see answer by rothauserc(4718)

Question 1085817: given f(x) = x-1/x and g(x) = 1/x, what is f(g(1/2))
Click here to see answer by jim_thompson5910(35256)

Question 1085870: Give two functions f(x) and g(x) so that f(g(x))= x squared -6x+ 9
Click here to see answer by MathLover1(20850)

Question 1085925: If f(x)=x^2 and g(x)=1/2x+3, find g(f(-1))
Click here to see answer by MathLover1(20850)

Question 1086003: If f(x)= x^2+6x+9, what is f(x-3)
Click here to see answer by Fombitz(32388)

Question 1086003: If f(x)= x^2+6x+9, what is f(x-3)
Click here to see answer by MathTherapy(10552)

Question 1086009: If (x)= x^2+1 and g(x)=x-1 for all real numbers x, for what real number does f(g(-a))= g(f(-a))?
Click here to see answer by ikleyn(52794)

Question 1086060: Find a linear function f such that f(3)=9 and f(7)=17. Then find f(-3).
Click here to see answer by ikleyn(52794)

Question 1086060: Find a linear function f such that f(3)=9 and f(7)=17. Then find f(-3).
Click here to see answer by MathTherapy(10552)

Question 1086109: given: f(x) = x2-2x+5 g(x)= squareroot of x
(f+g)(x)
Click here to see answer by Fombitz(32388)

Question 1085466: An agency rents Cars for one day and charges $22 plus 20 cents per mile the Car is driven.
(a) Write the equation for the cost of one day�s rental, y, in terms of x, the number of miles driven.
(b) Interpret the slope and the y- intercept.
(c) What is the renter�s average cost per mile if a Car is driven 100 miles? 200 miles?
(a) y=.20x+22
(b) The y intercept is the 22 dollars you are charged just for renting the car in the first place. The slope is the 20 cents (.20 dollars) you are charged every mile you are charged oer mile you drive.
(c) substitute 100 and 200 in for x.
y=.20(100)+22
y=20+22
y=42
then
y=.20(200)+22
y=40+22
y=62
Click here to see answer by funmath(2933)

Question 1083167: r(x)=x-5,s(x)=4x+2. Write the expression for :(r-s)(x)=,(r*s)(x)=,(r+s)(1)=
Click here to see answer by Fombitz(32388)

Question 1086273: f(x)=3sqrootx+13-3
Click here to see answer by Alan3354(69443)

Question 1086356: A set of 8 cards contains 1 joker. A and B are 2 players and A chooses 5 cards at random, B taking the
remaining 3 cards. What is the probability that A has the joker?
Click here to see answer by Edwin McCravy(20056)

Question 1086514: if f(x) = (x +2) / 3, then the value of f(0) equals?
Click here to see answer by ikleyn(52794)

Question 1086598: I need help finding the difference quotient for the following function.
F(x)=5x-4
Find for these:
1) f(x+h)=
2) f(x)=
3)f(x+h)-f(x)=
4)(f(x+h)-f(x))/h=
Click here to see answer by josgarithmetic(39618)

Question 1086599: Each figure represents a real number and no denominators are 0. Choose the correct statement and briefly explain why the others are incorrect.
1. a/b + c/d = (a+c)/bd
2. a/b + c/d = (a+c)/(b+d)
3. a/b + c/d = (ad+bc)/bd
Click here to see answer by ikleyn(52794)

Question 1086683: find the line that passes through the point (1,2) and is parallel to the line x+2y=3
Click here to see answer by Alan3354(69443)

Question 1086692: Need help with my son's Algebra:
Find the x-intercepts for the function f(x)=(x+2)^2-16
Thank you

Click here to see answer by ikleyn(52794)

Question 1086696: I need help finding the difference quotient for the following function.
F(x)=5x-4
Find for these:
1) f(x+h)=
2) f(x)=
3)f(x+h)-f(x)=
4)(f(x+h)-f(x))/h=
Click here to see answer by Edwin McCravy(20056)

Question 1086729: Evaluate [f(x+h)-f(x)]/h and simplify if f(x)=x^2+x+1
Help please!
Click here to see answer by jim_thompson5910(35256)

Question 1086684: the straight line x-y-6=0 cut the curve y^2=8x at p and q. calculate the length of pq
Click here to see answer by Alan3354(69443)

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