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

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Question 1103407: Find the slope of the line containing the following two points:
+f%281%2F10%29=-4+ and +f%28-1%2F5%29=-1%2F5+
Thank you all

Click here to see answer by josgarithmetic(39613) About Me 

Question 1103412: 1-5 For the following problems,
6-10 FIND EACH PRODUCT

Click here to see answer by richwmiller(17219) About Me 

Question 1103483: f(x)= 1/x+1
Click here to see answer by Alan3354(69443) About Me 

Question 1103521: Working on a assignment record of expenses. Asking if I spent 200$ write as a fraction if total monthly income was 3206
Click here to see answer by Alan3354(69443) About Me 

Question 1103759: Hello.
Could someone please help me complete the table for the function.
f(x)=x^2
x= 0, + or - 1, + or - 2, + or - 3.
y=
thanks.

Click here to see answer by Alan3354(69443) About Me 

Question 1103725: 1. f(x)=2x^4+4x^3-5x^2+3x-2 divided by p(x)=x^2+2x-3
2. Synthetic div to divide x^3-27 by x-3
3.

Click here to see answer by Edwin McCravy(20054) About Me 

Question 1103878: Can you please help me complete the table for the function.
h(x)= 1/4x^2
X, 0, + or - 1, + or - 2, + or - 3.
Y,
Thanks.

Click here to see answer by Fombitz(32388) About Me 

Question 1103876: Please help me complete the following table for the function.
g(x)=-2x^2
x, 0 + or - 1, + or - 2, + or - 3.
y,
Thanks.

Click here to see answer by Fombitz(32388) About Me 

Question 1103944: so in my math homework it says : use the functions f(x)=2x and g(x)=x to the second power + 1 to find the value of each expression below.
f(4)+g(4)

Click here to see answer by josgarithmetic(39613) About Me 

Question 1103945: so in my math homework it says : use the functions f(x)=2x and g(x)=x to the second power + 1 to find the value of each expression below.
f(4)+g(4)

Click here to see answer by Alan3354(69443) About Me 
Question 1103945: so in my math homework it says : use the functions f(x)=2x and g(x)=x to the second power + 1 to find the value of each expression below.
f(4)+g(4)

Click here to see answer by josgarithmetic(39613) About Me 

Question 1103955: Suppose you invest $1600 at an annual interest rate of 4.6% compounded continuously. How much will you have in the account after 4 years?
Can you explain?

Click here to see answer by math_helper(2461) About Me 

Question 1104000: 3. A quadratic function f can be written in the form f(x) = a(x - p)(x - 3). The graph of f has axis of symmetry x=2.5 and y-intercept at (0,-6)
a. Find the value of p.
b. Find the value of a.

Click here to see answer by josgarithmetic(39613) About Me 

Question 1104001: 4. In an arithmetic sequence, the first term is 3 and the second term is 7.
a. Find the common difference.
b. Find the tenth term.
c. Find the sum of the first ten terms of the sequence.

Click here to see answer by Boreal(15235) About Me 

Question 1103999: 2. The first three terms of a geometric sequence are
ln x^16, ln x^8, ln x^4, for x>0.
a. Find the common ratio.
b. Solve
sum%28%282%5E%285-k%29%29%2Ck=1%2Cinfinity%29%2Aln%28x%29%22%22=%22%2264

Click here to see answer by Edwin McCravy(20054) About Me 

Question 1104079: An acute angle θ is in a right triangle with
sin θ = 3/4. What is the value of cot θ?

Click here to see answer by Edwin McCravy(20054) About Me 

Question 1104188: Please help me with this question: If f(x) = x^2-x-1 and f[g(x)]=4x^2 + 10x + 5, find g(x).
Any help will be greatly appreciated!

Click here to see answer by math_helper(2461) About Me 
Question 1104188: Please help me with this question: If f(x) = x^2-x-1 and f[g(x)]=4x^2 + 10x + 5, find g(x).
Any help will be greatly appreciated!

Click here to see answer by KMST(5328) About Me 

Question 1104201: 12. Three consecutive terms of a geometric sequence are x - 3, 6, and x + 2.
a. Find the possible values of x.

Click here to see answer by ikleyn(52747) About Me 

Question 1104203: 11. Let x = ln 3 and y = ln 5. Write the following expressions in terms of x and y.

a. ln(5/3)
b. ln45

Click here to see answer by Alan3354(69443) About Me 

Question 1104211: The Function g is defined below
g(x)=x^2-2x-3/x^2-81
Find all the values of x that are NOT in the domain of g
if there is more than one value, separate them with commas.

Click here to see answer by jim_thompson5910(35256) About Me 

Question 1104204: 10. Consider f(x) = x^2+qx+r. The graph of f has a minimum value when x= -1.5.
The distance between the two zeros of f is 9.
a. Show that the two zeros of f is 9.
b. Find the value of q and of r.

Click here to see answer by greenestamps(13195) About Me 

Question 1104200: 13. A population of rare birds, P sub t, can be modeled by the equation P sub t, P0e^kt, where Psub0 is the initial population, and t is measured in decades. After one decade, it is estimated that Psub1/Psub0 = 0.9.
(i) Find the value of k.
(ii) Interpref the meaning of the value of k.

Click here to see answer by josgarithmetic(39613) About Me 

Question 1104314: 12. Three consecutive terms of a geometric sequence are x - 3, 6, and x + 2.
a. Find the possible values of x.

Click here to see answer by ikleyn(52747) About Me 

Question 1104315: 11. Let x = ln 3 and y = ln 5. Write the following expressions in terms of x and y

a. ln(5/3)
b. ln45

Click here to see answer by josgarithmetic(39613) About Me 
Question 1104315: 11. Let x = ln 3 and y = ln 5. Write the following expressions in terms of x and y

a. ln(5/3)
b. ln45

Click here to see answer by greenestamps(13195) About Me 

Question 1104319: What is the quadratic function y=ax2+bx+c whose graph passes through the given points?​(2,-22)(3,-44)(-1,-4)
Click here to see answer by josgarithmetic(39613) About Me 

Question 1104321: 5. The graph of a function y= f(x), for -6 < or equal to x < or equal to -2.
The points (-6, 6) and (-2, 6) lie on the graph of f. There is a minimum point at (-4,0).
a. Write down the range of f.
b. Let g(x)=f(x-5).
Sketch the graph of g
c. Write down the domain of g.

Click here to see answer by stanbon(75887) About Me 

Question 1104342: 8. Let f(x)=x^2 - 4x + 5.
a. Find the equation of the axis of symmetry of the graph of f.
b. The function can also be expressed in the form f(x) = (x- h)^2 + k.
(i) Write down the value of h.
(ii) Find the value of k.

Click here to see answer by josgarithmetic(39613) About Me 

Question 1104372: 8. Let f(x)=x^2 - 4x + 5.
a. Find the equation of the axis of symmetry of the graph of f.
b. The function can also be expressed in the form f(x) = (x- h)^2 + k.
(i) Write down the value of h.
(ii) Find the value of k.
I知 raally confused about a to start with

Click here to see answer by josgarithmetic(39613) About Me 

Question 1104402: Given f(x) = x^2 - 3, find and simplify f(a+h) - f(a).
a) 2ah+h^2
b) 2ah +h^2 -6
c) 2ah+ h^2 +3
d) h^2 -6

Click here to see answer by jim_thompson5910(35256) About Me 

Question 1104398: I asked this question before, and someone answered but I知 not getting it.
8. Let f(x)=x^2 - 4x + 5.
a. Find the equation of the axis of symmetry of the graph of f.
I知 extremely stuck on this first part.
Then, b tells us:
The function can also be expressed in the form f(x)=(x-h)^2+k.
Find h and k.
So does the equation we get for a give us the equation in b?? I知 extremely confused and I知 not understanding it.

Click here to see answer by josgarithmetic(39613) About Me 

Question 1104436: p(a)= a cubed -5 Find p(x-4)p(a)= a cubed -5 Find p(x-4)
Click here to see answer by Alan3354(69443) About Me 

Question 1104434: Let f(x)=x^2 -1 and g(x)= x^2 - 2, for x has the domain of all real numbers
a. Show that (f ー g)(x)=x^4 - 4x^2 + 3.
do we do this by putting g(x) into f(x)? How would this look like?

b. How could I sketch the graph of (f ー g)(x), for 0 is < or equal to x < or equal to 2.25?
Could I plug this into my calculator to see the graph and just copy it from there?
c. The equation (f ー g)(x)=k has exactly two solutions, for x < or equal to x < or equal to 2.25. Find the possible values of k.
I have no idea how to do this part. Could you help?

Click here to see answer by KMST(5328) About Me 

Question 1104659: Using the algebraic model n=2m+6,find n when m is 10.
Click here to see answer by Theo(13342) About Me 

Question 1105163: Please respond by 9:00 am tomorrow because I must know before my finals, and let me thank you for helping me beforehand! Question:
f(x)=16-2/3x ; Find f(-6).
I have tried solving this problem by substituting x for -6 like so:
f(x)=16-2/3(-6). My final answer was f(x)=12. My teacher gave me the correct answer but I can't seem to get her answer. Teacher's answer: f(-6)=20
Please let me know as soon as possible how to solve this problem because I would appreciate it.
From AlgebraGirl003

Click here to see answer by ikleyn(52747) About Me 
Question 1105163: Please respond by 9:00 am tomorrow because I must know before my finals, and let me thank you for helping me beforehand! Question:
f(x)=16-2/3x ; Find f(-6).
I have tried solving this problem by substituting x for -6 like so:
f(x)=16-2/3(-6). My final answer was f(x)=12. My teacher gave me the correct answer but I can't seem to get her answer. Teacher's answer: f(-6)=20
Please let me know as soon as possible how to solve this problem because I would appreciate it.
From AlgebraGirl003

Click here to see answer by jim_thompson5910(35256) About Me 
Question 1105163: Please respond by 9:00 am tomorrow because I must know before my finals, and let me thank you for helping me beforehand! Question:
f(x)=16-2/3x ; Find f(-6).
I have tried solving this problem by substituting x for -6 like so:
f(x)=16-2/3(-6). My final answer was f(x)=12. My teacher gave me the correct answer but I can't seem to get her answer. Teacher's answer: f(-6)=20
Please let me know as soon as possible how to solve this problem because I would appreciate it.
From AlgebraGirl003

Click here to see answer by josgarithmetic(39613) About Me 

Question 1105216: Could you please help with this math problem. I have to state the domain and range, the y-intercept, and say whether or not it's a function:
Jordon weighs 160 lbs. By lifting weights each month for a year, he continually gains weight until he is 200 lbs.
{x|
{y|
y-int:
Function - yes or no
I think that the y-intercept is (0, 160) and I think that it is a function because it is a linear equation because he is continually gaining weight each month. I am not sure what the domain and range would be nor am I clear on what the equation would look like. I think the range would be {y| 160 ≥ x ≤ 200}. Would the domain be {x| x >0} ?
Could you please help.
Thank you!

Click here to see answer by Boreal(15235) About Me 
Question 1105216: Could you please help with this math problem. I have to state the domain and range, the y-intercept, and say whether or not it's a function:
Jordon weighs 160 lbs. By lifting weights each month for a year, he continually gains weight until he is 200 lbs.
{x|
{y|
y-int:
Function - yes or no
I think that the y-intercept is (0, 160) and I think that it is a function because it is a linear equation because he is continually gaining weight each month. I am not sure what the domain and range would be nor am I clear on what the equation would look like. I think the range would be {y| 160 ≥ x ≤ 200}. Would the domain be {x| x >0} ?
Could you please help.
Thank you!

Click here to see answer by greenestamps(13195) About Me 

Question 1105304: Dippin' Dots cost $4.25 each What are the 2 variables
Click here to see answer by Alan3354(69443) About Me 

Question 1105037: Identify the domain and range of each relation. Use a mapping diagram to determine whether the relation is a function
{2,4),(8,11),(9,1),(4,2)}

Click here to see answer by Fombitz(32388) About Me 

Question 1105381: Equation of a tangent and normal with some solved examples
Click here to see answer by Alan3354(69443) About Me 

Question 1105411: function f and g are defined by f(x)= 4x-3 g(x)=px+q find the value of p and q for which gg(x)=f(x) for all value of x.
Click here to see answer by KMST(5328) About Me 

Question 1105535: If f(x)=+%28x%2B1%29%2F%281-2x%29+, find a simplified expression for f(+-1%2Fx+).
Click here to see answer by Boreal(15235) About Me 

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