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

Algebra ->  Algebra  -> Functions -> Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Functions, Domain, NOT graphing Solvers Lessons Answers archive Quiz In Depth

 Question 163213: Finding zeros of a function: f(x) = 1/2x^3 - x Click here to see answer by orca(409)

 Question 163661: Can I get help with this problem please, Given f(x)=1-5x and g(x)=x^2-3 find the composite function (fog)(x) and simplify. Thank you. Click here to see answer by jim_thompson5910(28715)

 Question 163873: How do you find the domain restrictions when simplifying rational equations? Click here to see answer by Fombitz(13828)

 Question 163985: I'm having a little trouble solving this one. Given , Determine the domain of the inverse I am getting as the inverse. So the range would be Am I on the right track here? Thanks for you help. Click here to see answer by jim_thompson5910(28715)

 Question 164127: I need help to solve this please! Much appreciated! Thanks If f (4)= 0 and f(6) =6, which of the following could represent f(x) and why? A- x+2 B- x-4 C- 3x-12 Thanks Click here to see answer by checkley77(12569)
 Question 164127: I need help to solve this please! Much appreciated! Thanks If f (4)= 0 and f(6) =6, which of the following could represent f(x) and why? A- x+2 B- x-4 C- 3x-12 Thanks Click here to see answer by Earlsdon(6294)

 Question 164191: Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: C(g)=3.03(g) Find C(2) Find C(9) I have solved as... C(2)=3.03(g) C*2-3.03*g=0 is this correct? C(9)... C(9)=3.03(g) c*9-3.03*g=0 Is this correct? Click here to see answer by aka042(26)
 Question 164191: Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: C(g)=3.03(g) Find C(2) Find C(9) I have solved as... C(2)=3.03(g) C*2-3.03*g=0 is this correct? C(9)... C(9)=3.03(g) c*9-3.03*g=0 Is this correct? Click here to see answer by marcsam823(57)

 Question 164265: wat is the domain of f(x)=1/x and g(x)=x+3 and f of g of x algebraically? Click here to see answer by padmameesala(42)

 Question 164277: Question: Write a cost function for the problem. Assume that the relationship is linear. Marginal cost, \$40; 70 items cost \$3800 to produce a) C(x)=14x+3800 b) C(x)=40x+1000 c) C(x)=40x+3800 d) C(x)=14x+100 Question: Assume that the sales of a certain appliance dealer are approximated by a linear function. Suppose that sales were \$10,500 in 1982 and \$67,000 in 1987. Let x=0 represent 1982. Find the equation giving yearly sales S(x). a) S(x)=11,300x+67,000 b) S(x)=56,500x+10,500 c) S(x)=56,500x+67,000 d) S(x)=11,300x+10,500 Mike Click here to see answer by watchmath(2)

 Question 164281: Determine the linear function whose graph is a line that contain the pionts (-3,-1) and (2, -6) Click here to see answer by algebrapro18(206)

 Question 164354: A local parking garage charges \$5.00 for the first hour plus \$1.50 for each additional hour or part of an hour. Write a relation as a set of ordered pairs in which the x-value represents the number of hours and the y-value represents the cost for x hours. Use a domain of 1,2,3,4,5. Is this relation a function? Explain Click here to see answer by stanbon(57967)

 Question 164358: I am having a hard time with this problem...can someone please help me out. I am not sure how to graph this equation. Graph the equation by plotting points. y=-4 Click here to see answer by stanbon(57967)

 Question 164361: I am having a hard time with this problem...can someone please help me out. Find the slope and the y-intercept of the line. Write the fractional answer in lowest terms. y=-4/2x-1/6 the slope is...? the y-intercept is...? Click here to see answer by stanbon(57967)
 Question 164361: I am having a hard time with this problem...can someone please help me out. Find the slope and the y-intercept of the line. Write the fractional answer in lowest terms. y=-4/2x-1/6 the slope is...? the y-intercept is...? Click here to see answer by Alan3354(31518)

 Question 164356: please help me in solving this equation... *I'm thinking that you are suppose to use the format y=mx+b but I am unsure if this is correct* Use the graph of the function f to find f(1), f(2), and f(3). f(1)= f(2)= f(3)= Click here to see answer by Alan3354(31518)

 Question 164446: Evaluate the function Given f(x)=6x2 + 6x + 2 find f(4) Click here to see answer by jim_thompson5910(28715)

 Question 164443: find the domain and range of the function y=x3 + 4 and y=sq root x - 7 Click here to see answer by the_tutor2008(2)

 Question 164473: I need to write as equation and solve. One month's rent plus half of one months rent equals 1725 THanks Click here to see answer by checkley77(12569)

 Question 164561: find the value of x so that (x,12) satisfies y=4x+8 Click here to see answer by checkley77(12569)

 Question 164576: Let f(x)=3x and g(x)=4x find each function and its domain f-g? I dont get it Click here to see answer by stanbon(57967)

 Question 164465: Suppose that the population of a certain city during a certain time period can be approximated by: P(x)0.1x^5+3.2x^4+5000 where x is time in years since 1960. Find P(13). (a) 63,766 (b) 59,266 (c) 58,366 (d) 62,066 Click here to see answer by Fombitz(13828)

 Question 164759: state whether each of the following relations is a function. If it is a function, state the independent variable and the correlation between variables. 1. Number of tickets sold for a benefit play and the amount of money made. Click here to see answer by Earlsdon(6294)

 Question 164837: 1. x^3-4=2, 2. And is this how you solve this problem? x3/2=125, x3/2=5^3 (3/2) 2/3=(5 3/1) 2/3 which the answer is 5^2 or write just 25 as the answer? 3. And how do I solve a algerbracially and check your potential solutions: (x)+20-x=0? 4. And if y=(x)-2 how do I feel in the following table for x=0,1,2? Click here to see answer by MRperkins(300)

 Question 164891: How would you find the domain of a function? Click here to see answer by edjones(7569)

 Question 164923: Given the function f(x)=square root of x-4 A.Find f-1(x) B. Graph f and f-1 in the same rectangular coordinate system C use interval notation to give the domain and the range of f and f-1 Thanks if anyone can offer me some help on this. Click here to see answer by Fombitz(13828)

 Question 165020: I am having difficulties on how to work this type of word problem. any help appreciated. The height s, in feet, of a rock thrown upward at an initial speed of 64ft/sec from a cliff 50 ft. above an ocean beach is given by the function s(t) = -16^2 + 64t +50, where t is the time in seconds. Find the maximum height above the beach that the rock will attain. Click here to see answer by nerdybill(7003)

 Question 165021: f(x) = sqrt(2-x). Find the domain and the range, and list the points. Help appreciated. Click here to see answer by tutorcecilia(2152)

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