Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 331532: Can you tell the domain and the range for the function, F(x) = 1/(x -2)

Click here to see answer by JBarnum(2146)

Question 331533: The domain of the function f(x) = 2x is all Real numbers but is the Range all Real numbers? How would you get the number 3 in the Range?
Click here to see answer by Jk22(389)

Question 331569: Find the variation constant where y varies directly to x and y=30 when x=6 : Am I correct in thinking the answer is 5
Click here to see answer by Alan3354(69443)

Question 331571: 4r^2+4r divided by 36r^2+16r I have been asked to simplify by removing the 1 factor. I can't remember how to do this.Please help.
Click here to see answer by mananth(16946)

Question 331570: 3x^8-15x^7+24x^6: Please factor this.
Click here to see answer by mananth(16946)

Question 331424: solve the quadratic equation by using the COMPLETING THE SQUARE method and applying the square root property.

Click here to see answer by ankor@dixie-net.com(22740)

Question 331423: 2x^2-3x=5 completing the square
Click here to see answer by galactus(183)

Question 331423: 2x^2-3x=5 completing the square
Click here to see answer by ankor@dixie-net.com(22740)

Question 331592: please solve the equation that is reducible to a quadratic equation.

Click here to see answer by texttutoring(324)

Question 331594: Please write the quadratic function in the form by the COMPLETING THE SQUARE METHOD. Please then identify the vertex.

Click here to see answer by texttutoring(324)

Question 331593: Please graph the parabola and the axis of symmetry for the provided quadratic function. make certain to show all phases of the construction of your final graph. also, make certain to label the coordinates of the vertex and write the equation of the axis of symmetry.

Click here to see answer by texttutoring(324)

Question 331590: please solve the provided equation in quadratic from by using the SUBSTITUTION METHOD.

Click here to see answer by solver91311(24713)

Question 331602: for the provided quadratic function of

A. Find the vertex
B. find the y intercept
C. find the x-intercepts
D. graph function
Click here to see answer by texttutoring(324)

Question 331602: for the provided quadratic function of

A. Find the vertex
B. find the y intercept
C. find the x-intercepts
D. graph function
Click here to see answer by solver91311(24713)

Question 331609: (2x+5)(8x^2+8x+6) The answer I came up with is 16x^3+56x^2+52x+30 am I right?
Click here to see answer by texttutoring(324)

Question 331609: (2x+5)(8x^2+8x+6) The answer I came up with is 16x^3+56x^2+52x+30 am I right?
Click here to see answer by rfer(16322)

Question 331439: The braking distance (in feet) of a car going V mph is given by V is greater or equal to zero.
how fast would a car have been traveling for a braking distance of 150ft? round to the nearest mile per hour
Click here to see answer by solver91311(24713)

Question 331669: complete the square, and find the roots of the quadratic equation for this equation x2 + 16x = 0
Click here to see answer by solver91311(24713)

Question 331600: please solve the provided quadratic equation by using the square root property. show check

Click here to see answer by ankor@dixie-net.com(22740)

Question 331681: f(x) = x2 � 4 apply the quadratic formula to find the roots of the given function, and then graph the function.
Click here to see answer by mananth(16946)

Question 331452: 1. Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. (x=1 is the day tickets go on sale).
Tickets=-.03x^2+12x+14
a. Does the graph of this equation open up or down? How did you determine this?

b. Describe what happens to the tickets sales as time passes.

c. Use the quadratic equation to determine the last day that tickets will be sold.
Note. Write your answer in terms of the number of days after ticket sales begin.

d. Will tickets peak or be at a low during the middle of the sale? How do you know?

e. After how many days will the peak or low occur?
f. How many tickets will be sold on the day when the peak or low occurs?

g. What is the point of the vertex? How does this number relate to your answers in parts e. and f?

h. How many solutions are there to the equation -0.3x+12x+14=0 ? How do you know?
i. What do the solutions represent? Is there a solution that does not make sense? If so, in what ways does the solution not make sense?

Click here to see answer by ankor@dixie-net.com(22740)

Question 331761: solve using addition and multiplication priinciple
7-10z+4>-11z+5
please note, there's a line under the > symbol. I do not know how to put a line under the > sumbol
Click here to see answer by mathmandotcom(31)

Question 331760: solve using mulitplication principle
-x/4>5

please note, there's a line under the > symbol. I do not know how to put a line under the > symbol.
Click here to see answer by mathmandotcom(31)

Question 331759: solve using addition principle
z+4>5
please note, there's a sign under the > symbol. I do not know how to put a line under the > sign.
Click here to see answer by nerdybill(7384)

Question 331758: graph on number line
x<-3
please note, the < is less then or equal to, i could not get a line under the < sign.
Click here to see answer by Alan3354(69443)

Question 331785: given the provided quadratic function
A. find the value of the discriminant
B. Use the descriminant to determine the number and type of solutions
C. find the x-intercepts
D- find the y-intercepts
Click here to see answer by Jk22(389)

Question 331832: (b+p)(b^2-bp+p^2) For this one I got b^3 am I right?
Click here to see answer by jrfrunner(365)

Question 331817: please use the standard from of a parabola given by to write an eqaution of a parabola that passes through the given points
(1,2)(-1,-6) and (2,-3)
Click here to see answer by ankor@dixie-net.com(22740)

Question 331847: is the answer to s^2+s-42=0 s=-7,6 ? that's what I got
Click here to see answer by Alan3354(69443)

Question 331851: Erin's age is 3 times Warren's. In 4 years she will be twice as old as he will be. How old is each? I know Erin is 12 and Warren is 4. How can I check this
Click here to see answer by checkley77(12844)

Question 331834: I tried to factor this one so please tell me if I'm right. c^3-2c^2-35 I got c(c-7)(c+5)
Click here to see answer by checkley77(12844)

Question 331818: please solve the provided quadratic equation by using the quadratic formula. show check

Click here to see answer by checkley77(12844)

Question 331862: solve using multiplication principle
-x/4=>-12
Click here to see answer by rfer(16322)

Question 331856: 13x^2+8x-14=0 value of the discriminate
Click here to see answer by mananth(16946)

Question 331938: the different between two positive integers is 36. one interger is three times as great as the other. Find the integers.
Click here to see answer by mananth(16946)

Question 331974: 15x^2+10x-1=0 I was asked to find the discriminant. I said is 10x-1 and did it have 2 imaginary solutions, 2 real solutions or 1 real solution. I would say 1 real. am i right?
Click here to see answer by Earlsdon(6294)

Question 331977: Hello, Im stuck can i please have some help. Thank you, kindly!
In 1995 the Life Expectancy of a certain country was 68.9 years. In 2002 it was 71.1 years. Let E represent the life expectancy in year T and let year T represent the number of years since 1995.
E(t) = __t+___
(round to the nearest tenth)
Use the function to predict the life expectancy in males in 2005.
E(10)= _____
(Round to nearest tenth)

Click here to see answer by nerdybill(7384)

Question 331983: The baseball player throws a ball, and the height of the ball (in feet) can be approximated by the quadratic function where x is the horizontal position of the ball measured in feet from the origin.
A. For what value of x will the ball reach its highest point? round to the nearest foot.
B. What is the maximum height of the ball? round to the nearest tenth of a foot.
Click here to see answer by nerdybill(7384)

Question 331971: 2x^2-3x=-7 I was asked to find the solution set. I used the quadratic equation and came up with -3+/- the square of 47/4 right?
Click here to see answer by Alan3354(69443)

Question 331967: (-3t)^2(2t^8)^3 when I did this one I squared - first, and took 2 to the 8th power giving me 9t(256t)^3 so then I multiplied them and came up with 2304t^3 power. Am I right so far. IF so then I would raise 2304 to the third power. am i right?
Click here to see answer by ankor@dixie-net.com(22740)

Question 332111: 2(2)^2+3(2)(-4)-4(-4)^2=-80
can you show how this was completed
Click here to see answer by checkley77(12844)

Question 332126: P(x)= - 0.08x^2 + 60x - 750 how many units will give a break even point for this product? I'm attempting to use the quadratic equation to solve however I am stuck.
Click here to see answer by ankor@dixie-net.com(22740)

Question 332201: 4.7 is what % of 18.3
Click here to see answer by nyc_function(2741)

Question 332279: I need help with this one please.
Graph the quadratic function
f(x)= 4(x+5)^2-1
Complete all of the steps required to find the information needed to be able to graph the function by hand.
Thank-you ahead of time. I sincerely appreciate your time.
Click here to see answer by jim_thompson5910(35256)

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, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240