Tutors Answer Your Questions about Functions (FREE)
Question 1119764: Hi, I need some help understanding this absolute value inequality function. I don't understand why the answer says 'x' is not a real number.
"-5|x-3|-5<15".
I worked it out and I thought the solution was x<-1 or x>7 but it wasn't correct according to the answer. Could you please help me? Thank you!
Click here to see answer by ikleyn(52778)  |
Question 1119764: Hi, I need some help understanding this absolute value inequality function. I don't understand why the answer says 'x' is not a real number.
"-5|x-3|-5<15".
I worked it out and I thought the solution was x<-1 or x>7 but it wasn't correct according to the answer. Could you please help me? Thank you!
Click here to see answer by josgarithmetic(39617) |
Question 1119764: Hi, I need some help understanding this absolute value inequality function. I don't understand why the answer says 'x' is not a real number.
"-5|x-3|-5<15".
I worked it out and I thought the solution was x<-1 or x>7 but it wasn't correct according to the answer. Could you please help me? Thank you!
Click here to see answer by MathTherapy(10551)  |
Question 1120171: Suppose the point (−1,5) is on the graph of a function f(x).
(a) If f is even, then what other point (besides (−1,5)) must also lie on the graph of f(x)? Explain.
(b) If f is odd, then what other point (besides (−1,5)) must also lie on the graph of f(x)? Explain.
Click here to see answer by greenestamps(13198)  |
Question 1121642: How do you determine whether is an even, odd, or neither and what is its symmetry?
If I recall correctly even tests are f(-x) = f(x), odd tests are f(-x) = -f(x) and even has a symmetry in respects to the y-axis and odd to the origin? But I don't know how to approach the above function.
Click here to see answer by MathLover1(20849)  |
Question 1121642: How do you determine whether is an even, odd, or neither and what is its symmetry?
If I recall correctly even tests are f(-x) = f(x), odd tests are f(-x) = -f(x) and even has a symmetry in respects to the y-axis and odd to the origin? But I don't know how to approach the above function.
Click here to see answer by greenestamps(13198)  |
Question 1121678: The cost of a camp is $300 for the first week and $125 for each week
beyond the first. The total cost can be modeled by the expression
300 + 125(x – 1). What does (x – 1) represent?
A. The number of weeks.
B. The cost of two weeks.
C. The cost of weeks after the first week.
D. The number of weeks after the first week.
Click here to see answer by solver91311(24713)  |
Question 1121678: The cost of a camp is $300 for the first week and $125 for each week
beyond the first. The total cost can be modeled by the expression
300 + 125(x – 1). What does (x – 1) represent?
A. The number of weeks.
B. The cost of two weeks.
C. The cost of weeks after the first week.
D. The number of weeks after the first week.
Click here to see answer by Boreal(15235)  |
Question 1121874: In administering rescue breathing on an adult, the rescuer firstly gives two regular sized breaths followed by a circle of ten breaths every minute.
a.Create a function where n represents the number of breaths you would need to administer to a victim over t number of minutes.
b. Describe in words, the input and output of the function you created.
c. What type of function did you create, and what would be the domain?
d. Create a table with 2 columns and list the input and output.
I'm not sure if I'm on the right track but I thought the function might be:
n(t)= 2 + 10n or n(t)= 2t + 10
It would be a linear function. I'm not sure about the domain.
Thank you so much!
Click here to see answer by solver91311(24713)  |
Question 1121924: does the relation define a function? if it does, state the domain of the function.
input - m, n, p, q
output - 2, 3, 2, 3
A. Yes; domain: (m, n, p, q)
B. Yes; domain: (2, 3, 2, 3)
C. Yes; domain: (2, 3,)
D. No
Click here to see answer by ikleyn(52778)  |
Question 1122024: A sales person is paid a weekly salary of $760, plus a commission of 7.5% of all her sales for the week. Express her weekly income in terms of the weekly sales amount. Is this a function? How do you know? What is an appropriate domain?
Tried: W= 760+0.075x
Click here to see answer by josgarithmetic(39617) |
Question 1122137: I would truly appreciate help with the following:
I am given the following coordinates (-5,-4),(-1,-4),(0,-4),(3,-4),(4,-4)
a. What is the x-intercept(s)? Type an integer using commas to separate answers.
b. What is the y-intercept(s)? Type an integer using commas to separate answers.
c. What is the missing function value indicated by the question mark
f(-5)+ f(3)=?
Click here to see answer by solver91311(24713)  |
Question 1122333: Two people are having a debate. One person believes fuel efficiency (miles per gallon of a car) is an example of a function. However, the other person does not believe it is an example of a function. Explain why each individual could be correct.
Click here to see answer by Boreal(15235)  |
Question 1122581: I don't understand functions, I really need help.
17.) Let f(x)= 5x and g(x)=-2x-3. Find (f+g)(x), (f-g)(x), and (f/g)(x).
In exercises 19- 30, for each pair of functions, f and g, determine the domain of f+g.
19.) f(x)=3x+7, g(x)=9x+10
27.) f(x)= 8x/x-2, g(x)=6/2-x
29.) f(x)=x^2, g(x)=x^3
In exercises 31- 50, let f(x)=x^2+4x and g(x)=2-x. Find each of the following.
47.) The domain of f+g
49.) The domain of f/g
Click here to see answer by josgarithmetic(39617) |
Question 1122576: Tony has $34.Tony is going to the fair.The total cost for the fair can be represented by the function C(x) = 2x + 5,where x is the number of rides Tony rides.Tony plans to ride 13 rides at the fair.Will Tony have enough money?If so,how much money will he have left over?If not,how much more make money will he need?
Click here to see answer by josgarithmetic(39617) |
Question 1122576: Tony has $34.Tony is going to the fair.The total cost for the fair can be represented by the function C(x) = 2x + 5,where x is the number of rides Tony rides.Tony plans to ride 13 rides at the fair.Will Tony have enough money?If so,how much money will he have left over?If not,how much more make money will he need?
Click here to see answer by MathTherapy(10551)  |
|
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
|