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

Tutors Answer Your Questions about Functions (FREE)

Question 181331: # 40 is similar to this
evaluate the function
f(x) {x^2-4 x<3 (that is suppose to be < with a line under it - less than or equal to
{1-2x^2 x >3
at f(-1) f(4) f(1)
This is what I have
f(x) x^2-4
f(-1) = -1^2-4 = -3
f(x) 1-2x^2
f(4) = 1-2(4)^2 = 1-2(16) = 1-32 = -31
f(x) x^2 -4
f(1) = 1^2 -4 = -3
What do you think?
Click here to see answer by Fombitz(32388)

Question 181428: (5^8)^3

3.6958 x 10^4 = x
Click here to see answer by carter6949(26)

Question 181426: How is dividing a polynomial by a binomial similar to or different
from the long division you learned in elementary school?
Click here to see answer by Mathtut(3670)

Question 181121: 18(-4)
-72

Click here to see answer by soliyana(1)

Question 181468: what is a domain and range
Click here to see answer by Mathtut(3670)

Question 181610: y=5x-4
(__,11)
Please help me solve this
Click here to see answer by nerdybill(7384)

Question 181612: i need to get a function out of known domains and range.. domains(0,2,4,6) range(3,4,5,6) please help
Click here to see answer by solver91311(24713)

Question 181630: The altitude in feet of a toy rocket t seconds after launch is given by the function S(t) = -16t^2 + 128t.
What is the maximum altitude reached by the rocket?

How long does it take for the rocket to reach this maximum altitude?
Click here to see answer by josmiceli(19441)

Question 181802: write a function rule for the table
x / y
-1 / 10
1 / 4
3 / -2
5 / -8
Click here to see answer by Mathtut(3670)

Question 181805: please HELP!!
the problem 27x-50 but its in two straight lines i forgot what it means and what you do when you get the answer. can you help. i know that you might not be able to solve this particular problem but you can give me an example to go by that would be a huge help. thanks in advance to who ever answers. thanks again.
Click here to see answer by Alan3354(69443)

Question 181820: Write the equation of the line passing through (2,3) and (-3,-7) in slope-intercept form?
By the way, thank you for your continued help, much appreciated!
karen
Click here to see answer by jim_thompson5910(35256)

Question 181843: Write an equation of the line given the y-intercept and slope:m=1/2,b=3
Click here to see answer by jim_thompson5910(35256)

Question 181845: Write an equation of the line that is perpendicular to the line y=-2/3x+4 and passes through the point (1,-4).
Click here to see answer by solver91311(24713)

Question 181849: y less than or equal to 2/3+2.
Click here to see answer by solver91311(24713)

Question 181846: Tell whether the two given equations are perpendicular, parallel, the same, or none of these.
y= -1/2x+3
8x+16y=32
Click here to see answer by vleith(2983)

Question 181846: Tell whether the two given equations are perpendicular, parallel, the same, or none of these.
y= -1/2x+3
8x+16y=32
Click here to see answer by solver91311(24713)

Question 182287: 1. 0
----=0( that's 89 to the second power is it true or false)
89^2

2.(3x^4)^-3 3.(16)^3/4 4. x^1/2times x^3/2
--------
y ----------------
x^-1
Click here to see answer by stanbon(75887)

Question 182249: The sum of two numbers is 20. If one number is x, then the other number is ____. Their product is p(x)= _____. Find the maximum value of p. Write a quadratic function to solve.
Click here to see answer by ankor@dixie-net.com(22740)

Question 182389: If f(x) = (x)^2 / 2 and g(x) = 5/x, what is f(x)/g(x)?
A. x^3/10
B. x/10
C. 10?X
D. 10/x^3
Click here to see answer by solver91311(24713)

Question 182387: Which set of ordered pairs is not a function?
A. (-1, 0), (0, 1), (1,2), (2,3)
B. (-1, 0), ( 0,0), (1,0), (2,0)
C. (1, -1), (1, 0), (1,1), (1,2)
D. (-1, 1), (0,0), (1,1), (2,2)
Click here to see answer by Fombitz(32388)

Question 182415: find the domain and range of this problem
{(-3,-7),(-1,-3),(0,-1),(2,3),(4,7)}
Click here to see answer by solver91311(24713)

Question 182542: For the quadratic function:
2x^2 - 4x -6,
FInd the a: domain
b. range
c. axis of symmetry
Click here to see answer by Mathtut(3670)

Question 182550: Quadratic Function
Find the a: vertex
b: domain
c: range
of f(x) = -2x^2 - 4x +3
Click here to see answer by stanbon(75887)

Question 182550: Quadratic Function
Find the a: vertex
b: domain
c: range
of f(x) = -2x^2 - 4x +3
Click here to see answer by solver91311(24713)

Question 182565: y = 1/2x^2 -2
x y
0 ?
1 ?
2 ?
3 ?
Find y
Click here to see answer by checkley77(12844)

Question 182565: y = 1/2x^2 -2
x y
0 ?
1 ?
2 ?
3 ?
Find y
Click here to see answer by jojo14344(1513)

Question 182591: find the domain of the function:
f(w)= -2w divided by w-5

Click here to see answer by solver91311(24713)

Question 182730: I need help please, I could not find an example in the book.
Transform the function f(x)=x^2-10x+32 to the form f(x)=c(x-h)^2+k, where c,h,and k are constants, by completing the square.
Thank-you
Click here to see answer by vleith(2983)

Question 182750: I dont understand. Please help.
Given f(x) = x over x+1 and g(x) = x^3
Find f/g(x) and determine the domain.
Thanks
Click here to see answer by stanbon(75887)

Question 183014: f(x)= 2x + 5 and g(x)= 3x2-1 the 2 should be squared.
f(b2) (b squared)
g(a + 1)
f(0)+9(3)
Click here to see answer by jim_thompson5910(35256)

Question 183560: Given the function f(x)=4 x^2 + x - 2. Calculate the following values:
f(0)=
f(2)=
f(-2)=
f(x+1)=
f(-x)=

Click here to see answer by checkley77(12844)

Question 183562: List all real values of x such that f(x) = 0.
f(x) = {-6 x + 11}/{-18}
Click here to see answer by stanbon(75887)

Question 183673: Given f(x) = 2x + 9, find ( f^-1 o f)(x)
Click here to see answer by HyperBrain(694)

Question 183672: Given f(x) = x^2 + x and h(x) = x - 2, find ( f O h)(x)
Click here to see answer by HyperBrain(694)

Question 184084: could someone please help.
The equation of the line that goes through the point ( 7 ,2 ) and is parallel to the line 5 x + 3 y = 5 can be written in the form y = mx+b where m is:
and where b is:

Click here to see answer by vleith(2983)

Question 184088: Find the slope, x-intercept, and y-intercept for the line 1 x - 5 y + 11 = 0.
The slope is .
The x-intercept is .
The y-intercept is .
Note: Your answers must be decimals.
Click here to see answer by jojo14344(1513)

Question 184087: The equation of the line that goes through the points ( -1 ,-7 ) and ( 0 ,2 ) can be written in general form A x + B y + C = 0 where
A=
B=
C=
Click here to see answer by jojo14344(1513)

Question 184085: The equation of the line that goes through the point ( 2, 5 ) is parallel to the line going through the points ( -1 ,2 ) and ( 1 ,6 ) is written in the form y = mx+b where
m is:
and b is:
Click here to see answer by jojo14344(1513)

Question 184003: up to and including george bush, teh ages of teh last 15 presidents when they first took office were 56 55 51 54 51 60 62 43 55 56 52 69 64 45 54
if the mean age of the past 16 presidents is 54.94, at what age did the missing president take office?
Click here to see answer by ankor@dixie-net.com(22740)

Question 184086: Find an equation y = m x + b of the perpendicular bisector of the line segment joining the points A(3,5) and B(9,-1).
The slope m is
The constant b is
Click here to see answer by solver91311(24713)

Question 184118: The function C(F)=5/9(F-32) can be used to convert temperatures from degrees Farenheit to degrees Celcius. Gold is solid for temperatures less than 1063 degrees Celcius. Find the Farenheit temperatures for which gold is solid.
Click here to see answer by Alan3354(69443)

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