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Question 1006552: f(x)=6x-9; g(x)=8x-2
find (f-g)(x)
Click here to see answer by stanbon(75887)

Question 1006555: f(X)=3x+1; g(x)=5x-1
find (f/g)(x)
Click here to see answer by josgarithmetic(39618)

Question 1006554: f(x)=8x+9; g(x)=7x-5
find (f*g)(x)
Click here to see answer by jim_thompson5910(35256)

Question 1006594: A function p(x) has a value of 5 when x>0 and a value of -5 when x<0.
A function q is defined as q(x) = x^2 - 4.
What is the value of (q(p(3))?
I get the answer:
Step 1. p(3) = 5 when 3>0 and -5 when 3<0.
Step 2. q(5) = 5^2-4 = 21.
But why did I use 5 in step 2, and what does this mean? Could someone put it in words?
Thank you.

Click here to see answer by jim_thompson5910(35256)

Question 1006613: whats the slope of (3/8,-1)(-1/4,-1/4)
Click here to see answer by Alan3354(69443)

Question 1006726: Landon travels 0.5 radians per minute as he rotates on a Ferris wheel.
Define a function, j, that gives Landon's horizontal distance to the right of the vertical diameter of the Ferris wheel (in radii) in terms of the number of minutes, t, that have elapsed since Landon started to rotate counter-clockwise from the 3 o'clock position
Thanks
Click here to see answer by josmiceli(19441)

Question 1006762: Please help me solve this inverse function problem with steps.
f(x)= -3x^3-5
Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 1006791: Combining functions with (f*g)(x) and (f*g)(4):
f(x)= sqrt(4x-1) g(x)=x^2-10
I've tried sqrt(4x^2-1-10)
But, I didn't know how I would multiply that by 4, so it doesn't seem right.

Click here to see answer by jim_thompson5910(35256)

Question 1006790: Combining functions with (f*g)(x) and (f*g)(4):
f(x)= srt(4x-1) g(x)=x^2-10
I've tried srt(4x^2-1-10)
But, I didn't know how I would multiply that by 4, so it doesn't seem right.

Click here to see answer by It is costly(175)

Question 1005510: Given
f(x) = 9x − 6
and
g(x) = 6x − 1,
evaluate the composite function.
g[f(x)]

Click here to see answer by Fombitz(32388)

Question 1006943: 0=1+x+1/3y
Click here to see answer by ikleyn(52794)

Question 1007060: f(x)=4
Click here to see answer by ikleyn(52794)

Question 1007037: Solve each polynomial equation by factoring.
1. 5x^3+10x^2+5x=0.
For #1 - Would this answer be cannot be factored ? Because I did it, and i'm getting x = {0, -1, -1}.
2. x^3+2x^2-9x-18=0
Thanks

Click here to see answer by Edwin McCravy(20056)

Question 1007071: Graph each relation and state its domain and range.
x=(y+2)^2

Click here to see answer by josgarithmetic(39618)

Question 1007132: is this a function? -3x+8=y
Click here to see answer by Theo(13342)

Question 1007238: which relation represents a function?
1.(0,3),(2,4),(0,6)
2.(-7,5,(-7,1),(-10,3),(-4,3)
3.(2,0),(6,2),(6,-2)
4.(-6,5),(-3,2),(1,2),(6,5)

and explain why it represents a function
Click here to see answer by Boreal(15235)

Question 1007180: A Ferris wheel is 32 meters in diameter and the bottom of the Ferris wheel is 8 meters above the ground. You board the Ferris wheel at the 3 o'clock position.
1. Define a function f that gives your height above the ground (in meters) in terms of the number of minutes elapsed since you boarded the Ferris wheel, t.
Thank you!
Click here to see answer by Edwin McCravy(20056)

Question 1007538: Given the function f(x)=2e^3x+1
a. Find f(.20)
b. Find the value of x such that f(x)=8
Click here to see answer by fractalier(6550)

Question 1007589: f(7) if f(x) = 5x
Click here to see answer by fractalier(6550)

Question 1007696: The function f(x)=-3x^2+13x-9 has a maximum of what?
Click here to see answer by stanbon(75887)

Question 1007696: The function f(x)=-3x^2+13x-9 has a maximum of what?
Click here to see answer by josgarithmetic(39618)

Question 1004076: Find the completely factored form of (fx)= 2x^4-x^3-13x^2-6x if (x+2) is one of the factors
Click here to see answer by josgarithmetic(39618)

Question 1007066: Graph each Function and state its domain and range.
f(x)=2
Click here to see answer by fractalier(6550)

Question 1007533: Given the functions f(x) = sqrt (8-x) AND g(x)= x^2-3
Give the domain of f and g in set notation

Click here to see answer by It is costly(175)

Question 1008200: Find the difference quotient of the following function
f(x)=(3x+4)^2
Click here to see answer by jim_thompson5910(35256)

Question 1008488: If g(t) = log(25-5t)-3
a) Find g(5)
b) Solve g(t) = 0
Click here to see answer by Alan3354(69443)

Question 1008586: Question :

Evaluate f(x)=−7x+3 when x=−2, x=0, and x=5.

When x=-2, f(x)= ___, when x=0, f(x)= ___, and when x=5, f(x) ___.
Click here to see answer by stanbon(75887)

Question 1008591: Rewrite the equation y=2|x−3|+5 as two linear functions f and g with restricted domains.

f(x)=___, x≤___

g(x)=___, x>___
Click here to see answer by stanbon(75887)

Question 1008604: Please follow the link below to the question :

http://imgur.com/0z91Dx3
Click here to see answer by MathLover1(20850)

Question 1008604: Please follow the link below to the question :

http://imgur.com/0z91Dx3
Click here to see answer by jim_thompson5910(35256)

Question 1008608: Please follow the link below :

http://imgur.com/ymM0z30

Note : The answers that have a green checkmark next to them are the ones I already put in and got right. The empty boxes are the ones I'm confused with. Thanks.
Click here to see answer by MathLover1(20850)

Question 1008610: Please take a look at the link below to help me with my problem :

http://imgur.com/0z91Dx3

Note : The answers with green checkmarks next to them are the ones I already put in and got right. I only need help with the empty boxes. Thanks.
Click here to see answer by josgarithmetic(39618)

Question 1008652: When Jerome travels on the highway, he sets his cruise control at 65 mi/h. The function f (x) = 65x represents his total distance f (x) when he has traveled x hours. How many miles will he have travelled after 3.5 hours of driving on the highway
Click here to see answer by fractalier(6550)

Question 1008785: Write a rule that represents the function
(0,0), (1,1), (2,4), (3,9), (4,16)
Click here to see answer by MathLover1(20850)

Question 1008822: Juliana has created the function f(x) = the quantity of 3x plus 2, divided by 4 to represent the cost of texting on her current plan, where x represents the number of texts. Juliana discovers that, using the inverse function to solve for x = 24, she can predict how many texts she can use for $24. Explain to Juliana how to accomplish this, using complete sentences.
Click here to see answer by josgarithmetic(39618)

Question 1008814: If a polynomial f(x) has a remainder of -8 when divided by x-9, what is f(9)?

Click here to see answer by josgarithmetic(39618)

Question 1008850: f(x)=(1-x)/7x, g(x)=1/(1+7x)
Find (f*g)(x) and its domain
Find (g*f)(x) and its domain
4 answers and I am completely stuck trying to simplify this
Click here to see answer by stanbon(75887)

Question 1009038: Let Use the defintion of the derivative to determine f'(-1)
Let Use the defintion of the derivative to determine g'(1)

I know that the limit definition of the derivative is lim h->0 just unsure how to apply it exactly.
Please show how this is done
Thank you
Click here to see answer by Alan3354(69443)

Question 1009123: What is the slope-intercept form perpendicular to the line 2x-5=-11 that passes through point (7,5)? How do you get it?
Click here to see answer by josgarithmetic(39618)

Question 1009123: What is the slope-intercept form perpendicular to the line 2x-5=-11 that passes through point (7,5)? How do you get it?
Click here to see answer by macston(5194)

Question 1009123: What is the slope-intercept form perpendicular to the line 2x-5=-11 that passes through point (7,5)? How do you get it?
Click here to see answer by MathLover1(20850)

Question 1009542: I've been having trouble understanding how to solve these, please help?
Given f(x) = x − 1/x and g(x) = 1/x, what is f(g(1/2))
Thank you
Click here to see answer by fractalier(6550)

Question 1008477: find the domain of f(x) = square root x+2 divided by x+1
Click here to see answer by It is costly(175)

Question 1009790: A new bag of cat food weighs 18 pounds. At the end of each day, 0.5 pound of food is removed to feed the cats. Find the 30th term, and explain what it represents.
Click here to see answer by josgarithmetic(39618)

Question 1009852: what is the domain of the function f(x)=ln(ln(ln(ln(x)))) ??
how to solve it??
Click here to see answer by Edwin McCravy(20056)

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