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

Tutors Answer Your Questions about Functions (FREE)

Question 332562: My little sister is getting ready to take the compass test and I am trying to help her with the math part but it has been like 5 years since i have taken any algebra! here is the question if you could help that would be great!
if find:
thank you so much any help would be great!
Click here to see answer by solver91311(24713)

Question 332605: I really need help solving these problems;please!
1.) Use the intercepts to graph the equation: x+4y=8
2.) Solve: -14 less than equal to 3x-3 less than equal to -2.
3.)Find the domain of the function: p(x)=x square-2x+2
4.) Find the domain of the function: g(x)=5/8-9x
5.) Solve using the multiplication principle: -6x>1/13
6.) Graph the inequality on a plane: 2x+3y less than equal to 6
7.) Graph the equation using the slope and y-intercept: y=8/3x+5
8.) Solve by the substitution method> 4x+7y=5
x=17-7y
9.) Find the indicated outputs for f(x)=5x square-5x
f(0)=
f(-1)=
f(2)=
Click here to see answer by solver91311(24713)

Question 332962: Find f(4) (This means find the output of the functions when x = 4)
Find x when f(x)=1 (This means find the input that gives an output of 1.)
Click here to see answer by Alan3354(69443)

Question 333032: I really appreciate any help I can get on solving this problem:
If:
f(x)= 2x + 12
g (x) = 2x squared - 8x + 2
What are the points where they intersect, without graphing?
I tried to set them equal to each other and then solve for zero. Am I heading in the right direction?

Thank you in advance!

Click here to see answer by Alan3354(69443)

Question 333193: what is the domain of
(2,-3)(-1,0)(0,4)(-1,5)(4,-2)
Click here to see answer by tinbar(133)

Question 333231: If g(x)= 2x + 5(3x-2)
then what does g(x)=6,x=?
Click here to see answer by benazir.sj@gmail.com(109)

Question 333354: A group of students washed cars to raise money. The net amount A, in dollars, raised by washing k cars is given by the function A(K) = 4K-30 .If the group washed 15 cars, what is the net amount they raised?
(A) $10
(B) $15
(C) $20
(D) $25
(E) $30
Click here to see answer by palanisamy(496)

Question 333366: 1.) Solve by the elimination method:
7r-9s=-35
9r+7s=85
2.) Solve for the following system of equations:
x+4y=2
x=8-4y
3.)Find the slope and the y-intercept: f(x)=-2x-3
4.)Solve. 0.9x+9<_1.7x-8
Click here to see answer by richwmiller(17219)

Question 333425: Find the slope and the y-intercept.
f(x)=-2x-3
Click here to see answer by rfer(16322)

Question 333427: Solve by the substitution method:
4x+7y=5
x=17-7y
Click here to see answer by nyc_function(2741)

Question 333364: 1.)Solve using the multiplication principle: -6x>1/13
2.)Solve by the substitution method:
4x+7y=5
x=17-7y
3.) Graph the equation using the slope and y-intercept. y=8/3x+5
Click here to see answer by nyc_function(2741)

Question 333423: Solve by the elimination method:
7r-9s=-35
9r+7s=85
Click here to see answer by mananth(16946)

Question 333424: Solve: 0.9x+9<_1.7x-8
Click here to see answer by mananth(16946)

Question 333690: g(x) =2/7 -6x what is the domain
Click here to see answer by jim_thompson5910(35256)

Question 333753: x^3-5=3 could you help me solve this i have to school my work
Click here to see answer by mananth(16946)

Question 333879: find the domain of the function g(x)=4/9-4x
Click here to see answer by jim_thompson5910(35256)

Question 333884: graph the line given a pair of points and find the slope
(1,4) (-3,-4)
Click here to see answer by jim_thompson5910(35256)

Question 333882: solve by the substitution method
7x+2y=-27
x=19-6y
Click here to see answer by rfer(16322)

Question 333910: Given the function k describes by k(x) = x + 12 the following k(D+11)
Click here to see answer by checkley77(12844)

Question 333938: The question that I am working on is this: Determine the domain of the average cost, in dollars, that you anticipate the average American family might be willing to pay for one gallon of white milk. Provide a reasonable range, keeping in mind that some families do not drink milk, no matter the cost (that's a hint on the low end of this domain). Required format for writing domain and range is: ____less than or equal to x less than or equal to _____.
I need to know if I did this correctly. I put down 0 less than or equal to x less than or equal to 1.68.
Did I comprehend this correctly. This first question has to be correct in order to answer all of the following questions.
Thank you.
Click here to see answer by solver91311(24713)

Question 334155: find the domain and range of 2x+3y=12
Click here to see answer by Edwin McCravy(20054)

Question 334376: What is the domain of:
f(x)=sqrt3-9x
y=2x-4 over xsquared+16
y=2x-4 over xsquared-16
I need step by step instructions with notes, so I can figure these type of problems out on my own. I do not even know where to begin.
Click here to see answer by solver91311(24713)

Question 334383: f(-5)=8 how do I solve this
Click here to see answer by jim_thompson5910(35256)

Question 334511: determine wheter or not each of the situations describes a function. On a given night, your blood alcohol level is function of the number of beers you drink in a 2hour period.
Click here to see answer by solver91311(24713)

Question 334658: Evaluate: -3(r+8)
Click here to see answer by rfer(16322)

Question 334842: What is the domain and range of
y=-Cos(x/3)
Click here to see answer by Fombitz(32388)

Question 335138: find domain: g(t)= \sqrt[3]{t-63}
Click here to see answer by solver91311(24713)

Question 334184: Simplify completely: x^2+5x+4/x+1
Click here to see answer by Fombitz(32388)

Question 335390: how would you translate the phrase " the number of inches in any number of feet" into an algebraic expression?

Click here to see answer by Alan3354(69443)

Question 335499: How do I find the domain of the function F(x)=(8x+12)/(x^2=5x+4)
Click here to see answer by Fombitz(32388)

Question 335449: What is the answer to h(x)= -4/x/ if x equals 3
Click here to see answer by Fombitz(32388)

Question 335522: 1)what is the polynomial when the zeroes are: -2,2,3 with degree 3
2)what are the x and y integers of the polynomial:
f(x)=x^2(x-3)(x+4) thank you
Click here to see answer by Fombitz(32388)

Question 335529: What is the domain of this function?
g(x) = √(x(x-8)
Click here to see answer by Fombitz(32388)

Question 335515: Give the domain and range and tell whether function or not. Problem: 4x-5y=8
Click here to see answer by Fombitz(32388)

Question 335389: if g(2)=7 and g(-1)=10, find the equation for g(x)
I'm not even sure where to start
Click here to see answer by Fombitz(32388)

Question 335553: if f(x)= 3x-x^2 find the following f(3)-f(1)
Click here to see answer by solver91311(24713)

Question 335357: Suppose f(x)=2x+5 and g(x)= -1/3x+2. Find each value.
when f(-4).
Click here to see answer by Fombitz(32388)

Question 335789: I need help trying to solve this equation. If you show me how to work it I can figure the rest out on my own. 2x+3y=5
Click here to see answer by Fombitz(32388)

Question 335807: g(x)=6/8-5x find the domain
Click here to see answer by Fombitz(32388)

Question 335911: f(x) = 7x squared - 4x, what is the value of f(2)? I need the steps please.
Click here to see answer by stanbon(75887)

Question 335903: Find the domain of

Click here to see answer by stanbon(75887)

Question 336047: determine whether this equation is a function of x? show your work 4x=y2
Click here to see answer by jrfrunner(365)

Question 336101: I need help determining which value, if any, should be excluded from the domain of the variable in the expression 8/x+7
Click here to see answer by Earlsdon(6294)

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