Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 961915: Vertex: (-4,1)
Point: (-2,5)
Click here to see answer by EdenWolf(517)

Question 962138: Help me plz I think I am doing this completely wrong
Word question
Lilly a goalie for a soccer team needs to get the ball downfield to her teammates on the offensive end of the field she punts the ball from a point 2 feet above the ground with an intial upward velocity of 40 feet per second
Write a function rule that relates the balls height above the field h to its time in the air t (recall that gravity pull is 16t^2)

Work I have done
With the information I thought the formula would be -16t^2+40t+.2h=0
But I can't solve it I'm not even sure if the furmula is right Plz help
Click here to see answer by Alan3354(69443)

Question 962178: w^2-2w=15 need to solve by factoring and show how the work is checked with steps
Thank you
Click here to see answer by MathLover1(20849)

Question 962177: When you are solving a quadratic equation and you know it has 2 solutions, how do you find those 2 solutions? I know that you use the quadratic formula and get an answer but where does the other answer come from?
Click here to see answer by josgarithmetic(39613)

Question 962271: Please help me with this data analysis:
1.The median income in dollars of U.S households from 2000 to 2007 can be approximated by the model:I=187.65t^2-119.1t+42,013,0<=t<=7 where t represents the year,with t=0 corresponding to 2000
Graph this model,then use the graph to determine in which year the median reaches or surpassed $45,000.
Click here to see answer by Fombitz(32388)

Question 962349: Write the vertex of the following equation:
f(x)= (x+3)squared + 2

Click here to see answer by rothauserc(4718)

Question 962352: Rewrite in standard form:
Y=2(x+2)squared -1
Click here to see answer by MathLover1(20849)

Question 962353: Rewrite in standard form:
Y=-(x-4)squared + 4
Click here to see answer by MathLover1(20849)

Question 962351: Write the vertex for the following equation:
f(x)= (x-4)squared -1
Click here to see answer by MathLover1(20849)

Question 962342: For the polynomial below, -1 is a zero.
F(x)= x^3+7x^2+24x+18
Express f(x) as a product of linear factors
f(x)=
Click here to see answer by MathLover1(20849)

Question 962337: Find a polynomial f(x) of degree 3 with real coefficients and the following zeros.
-1,-1+i
Click here to see answer by stanbon(75887)

Question 962348: f(x)= (x-4)squared -1
Click here to see answer by 2897696(96)

Question 962375: Hello, I'm having difficulty solving this formula.
Solve for a: t/a + t/b = 1
Thank you.
Click here to see answer by ankor@dixie-net.com(22740)

Question 962166: What is the maximum height attained by an arrow if the arrow was fired into the air from the top of a building that is 120 feet tall. The arrow had an initial velocity of 64 feet per second. The distance in feet of the arrow from the ground is given by (st)= -16t^2+64t+120?
Click here to see answer by lwsshak3(11628)

Question 962416: How to solve x^2+4kx-k by completing the square

Click here to see answer by stanbon(75887)

Question 962416: How to solve x^2+4kx-k by completing the square

Click here to see answer by rothauserc(4718)

Question 962425: Write the vertex for the following equation:
f(x)= (x+1)squared -2
Click here to see answer by Alan3354(69443)

Question 962424: Write the vertex for the following equation:
f(x)= (x-2) squared +1
Click here to see answer by stanbon(75887)

Question 962445: Hi, I could use some help with this literal equation.
Solve for T: n = aT^2-4T+m
Thank you
Click here to see answer by Theo(13342)

Question 962456: given g(x)= 3x^4-2x^3+7x^2-5x+2 & F(x)= 2x^4+x^3+3x^2+3x-5 Find G(x)+F(X) And Find F(x)- G(x)
Click here to see answer by hkwu(60)

Question 962437: Find a polynomial f(x) of degree 3 with real coefficients and the following zeros -4,1-i
f(x)=
Click here to see answer by hkwu(60)

Question 962476: Find a polynomial f(x) of degree 3 with real coefficients and the following zeros -4,1-i
f(x)=
Click here to see answer by hkwu(60)

Question 962500: The difference of the squares of a number and one half the number is 27. Find the number.
Click here to see answer by hkwu(60)

Question 962496: use the quadratic formula to solve the equation. express your answer in simplest radical form.
Click here to see answer by MathLover1(20849)

Question 962483: The width of a rectangle is 3 less than twice its length. If the area of the rectangle is 87 cm^2, what is the length of the diagonal?
Click here to see answer by josgarithmetic(39613)

Question 962539: This is confusing. My teacher may have written the question wrong, but I want to make sure. If it is written correctly, I don't know how to do this.
The function f is defined by f(x)=x^2-2x-24. If f(x+3)=x^2+kx-21, what is the value of k?
Click here to see answer by josgarithmetic(39613)

Question 962549: A function is defined as f(x)= 2x+1.the value of X for which f(x), f(2x),f(4x) are in GP
Click here to see answer by amarjeeth123(569)

Question 962635: "Solve by factoring
"
We are doing the Zero Product Property. I need help because I donttknow if it can even be solved.
Click here to see answer by Theo(13342)

Question 962637: "Write a quadratic function whose roots are 3 and -6."
We are doing the Zero Product Property. I need help because I don't know how to make a function based on roots.
Click here to see answer by Theo(13342)

Question 962634: Can I have help please
"Solve by factoring
"
We are using the zero product property, but there are no multiples of 4 that goes into 7.
Click here to see answer by Theo(13342)

Question 962683: Find the maximum or minimum of each quadratic function.
-8y=(4x-3)(x+2)
Click here to see answer by Alan3354(69443)

Question 962728: Could you please help me solve this quadratic equation using completing the square method?
x^2+x=2=0
Click here to see answer by Alan3354(69443)

Question 962767: What is the vertex and axis of symmerty for y=-2x^2+16x-16
Click here to see answer by lwsshak3(11628)

Question 962767: What is the vertex and axis of symmerty for y=-2x^2+16x-16
Click here to see answer by MathLover1(20849)

Question 962772: I submitted a similar problem earlier, but it had a typo and could not be understood. I'm going to retype the problem with hopefully no typos this time. Could you please help me solve this quadratic equation using completing the square method? x^2+5x+6=0
Click here to see answer by Alan3354(69443)

Question 962829: Could you please help solve this quadratic equation using completing the square method?
x^2+9x+8=0
Click here to see answer by lwsshak3(11628)

Question 962829: Could you please help solve this quadratic equation using completing the square method?
x^2+9x+8=0
Click here to see answer by josgarithmetic(39613)

Question 962829: Could you please help solve this quadratic equation using completing the square method?
x^2+9x+8=0
Click here to see answer by josmiceli(19441)

Question 962773: Hi tutor ! So im a 14 year old who lives in texas . Ive really been struggling with the quadratic formula and would love for you to help me where i need help . Please please please respond here , on my email , or through text 2144317404 ! Thank you and God bless you .
Click here to see answer by josmiceli(19441)

Question 962945: Find the zeros of the polynomial
f(x)= x^3+x^2-20x
Click here to see answer by LinnW(1048)

Question 962966: A rectangular poster has an area of 190 inches squared the height of a poster is one inch less than twice its width. Find in the dimensions of the poster.
Click here to see answer by JulietG(1812)

Question 963036: Could someone help me with this problem
"Solve using the quadratic formula
"
Thanks
Click here to see answer by MathLover1(20849)

Question 963406: What factors do I use when ever I use the square? The factors have to add up to the number in the quadratic.
Click here to see answer by Fombitz(32388)

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