Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 339408: What does the graph f(x+1) look like? Is it shifted to the right or to the left
Click here to see answer by stanbon(57967)

Question 339705: 3x^2-8x=3600
Click here to see answer by nyc_function(2733)

Question 339794: I am having a difficult time with this problem. Could someone please help me?
If f(x)=5x/3-4, then f(12)=
Thank you.
Click here to see answer by Fombitz(13828)

Question 339045: If 9x^2 - y^2 = 0 then what is the positive value of x/y ?
Click here to see answer by Fombitz(13828)

Question 339129: factor out the lowest common factor,
k^2(k-10)-7(k-10)
Click here to see answer by Fombitz(13828)

Question 339456: how would you solve

(1.90E-2)=(x^2)/(.295-x)
Click here to see answer by Fombitz(13828)

Question 339135: one leg of a right triangle is 6cm shorter that the other leg, The length of the hypotenuse is 30cm. Find the length of the longer leg?
Click here to see answer by Fombitz(13828)

Question 339134: five step problem solving process,
A rectangular walkway is 18ft longer that it is wide. If the area of the walkway is 88sq ft. Find the length and the width.
18^2 + 88= I'm not sure if i'm going in the right direction, help!
Click here to see answer by Fombitz(13828)

Question 339905: If (2x – 2)(2 – x) = 0, what are all the possible values of x?
A. 0 only B. 1 only C. 2 only D. 1 and 2 only E. 0, 1, and 2
Click here to see answer by jim_thompson5910(28715)

Question 339164: ax^2+bx+c=0 using -10 and 6
Click here to see answer by Fombitz(13828)

Question 340006: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmate’s with one or two solutions with which they must create a quadratic equation.
Click here to see answer by solver91311(17077)

Question 340003: please help me solve this problem; Write the quadratic equation in general form.
16 – 2(x + 6)2 = 0 I got -2x2+24x+56=0
by 16-2(x2+12x+36)=0
16-2x2+24x+72=0
-16 -16
-2x2+24+56=0 so i don't understand why it is wrong.could you please help me. thank you.
Click here to see answer by edjones(7569)

Question 340045: what is x
3x+2(4x-1)-9=0
Click here to see answer by rfer(12730)

Question 340042: What adds to give you '+90' and multiplies to give you '-7200'?
Click here to see answer by Edwin McCravy(8999)

Question 340338: Hi,
What is y = x^2 + 4x - 1
find the x-intercepts
Thanks!
Click here to see answer by nerdybill(7008)

Question 340339: Hi,
I need help with:
Evaluate the discriminant b^2 - 4ac. Then use the answer to state how many real-number solutions exist for the equation: y = x^2 + 8x + 16
Thanks!
Click here to see answer by nerdybill(7008)

Question 340336: Hi,
What is h = 16t^2 + vt + s
solve for t
Thanks!
Click here to see answer by stanbon(57967)

Question 340334: Hi,
What is 4/(m^2-7) = 1 ?
Thanks.
Click here to see answer by Fombitz(13828)

Question 340182: Please help me find the x and y intercept for a circle,and if you can the center point and radius:

Click here to see answer by Fombitz(13828)

Question 340331: Hi,
What is X^2 + sqrt 22x = 0
Thanks.
Click here to see answer by Fombitz(13828)

Question 340480: HOW DO I CREATE AN EQUATION to graph a parabola for a dish thats 300 feet in diameter and has a maximum depth of 38 feet?
Click here to see answer by galactus(183)

Question 340712: Find the zeros (or roots)
express complex numbers in terms of i
Click here to see answer by Edwin McCravy(8999)

Question 340738: [(x+3)*4-7]/3=3
Click here to see answer by rfer(12730)

Question 340886: This equation is a word problem for ticket sales in the form of a formula. The equation is -0.2x^2 + 12x + 11. I have changed the signs to begin with. a=.2x^2 b=-12 and c=-11, the equation solver for the plotted points is -b+/- sqrt b^2 -4ac/2a is where I have started. I have come up with 135.2/.4 in this formula. Is this correct? To determine the last day of the ticket sales and the peak day or days for sales, is what I am having trouble with. Could you give me a step by step explanation of the the solutions, I have to have a visual aid to help me understand.
Click here to see answer by stanbon(57967)

Question 340918: what will be the perimeter of a quadrilateral if one sideis55cm,50cm,12cm abis parallel to cd
Click here to see answer by solver91311(17077)

Question 340916: Use complete sentences to explain how you would use graphing technology to find the solutions of 0 = −x^2 + 2.5x + 1. What do the solutions of 0 = −x2 + 2.5^x + 1 represent on the graph of the equation?
Click here to see answer by solver91311(17077)

Question 341023: I need help solving this problem. I keep getting the wrong answer. 5=.0002x^2-.316x+127.9. If you could help I would greatly appriciate it.
Click here to see answer by Alan3354(31528)

Question 341240: modeling and solving problems with quadratic equations problem
"your big-screen tv measures 50 inches on the diagonal. if the front of the TV measures 40 inches across the bottom, find the height of the TV."
Click here to see answer by fractalier(2101)

Question 341236: the sail on a sailboat is in the shape of a triangle. if the height of the sail is 5 times the length of base and the area is 160 square feet, find the dimensions of the sail.

Click here to see answer by texttutoring(324)

Question 341559: f(x)=x^2-7x-8

What is the vertex, the line of symmetry, and the x and y intercept(s)? How do you find each one?
Thanks!
Click here to see answer by stanbon(57967)

Question 341595: I need help solving x^2+20x=6
I know the formula should be x^2+bx but I need help understanding how to complete the square.
Click here to see answer by Fombitz(13828)

Question 341749: I need to find the vertex and axis of symmetry to graph the quadratic form, I understand how to graph quadratic forms but the fraction in this specific problem has me all jumbled up. I tried solving it and got x= 9/4 for the axis of symmetry and (9/4,87/16)for the vertex but im almost 100% certain that is wrong. I would really appreciate some help (PLEASE HELP ME). Thanks in advance.
-Kay
Click here to see answer by jim_thompson5910(28715)

Question 341747: Is "g(x)" the same thing as "y" at the end of an equation? I know it is a silly question but you can never be too sure, thanks in advance.
Click here to see answer by jim_thompson5910(28715)

Question 341742: the length of a rectangle is twice the width. the area is 392 yd^2. find the length and the width
Click here to see answer by checkley77(12569)

Question 341739: I need to solve this problem in quadratic form.
x^2/5 -5x^1/4-3=0
Click here to see answer by Fombitz(13828)

Question 341774: Sorry you are right I did not type it in correctly. I do need to solve it in quadratic form
X^2/5-x^1/5-2=0
Sorry!
Click here to see answer by stanbon(57967)

Question 341846: Determine the nature of the solutions of the equation. 2t^2-7t=0 Are there 2 imanginary solutions, 2 real solutions, or 1 real solution?
Click here to see answer by Fombitz(13828)

Question 341851: The length of a rectangle is twice the width. The area is 8yd^2. Find the length and the width.
The length is ____yd
The width is _______yd
Click here to see answer by mananth(12270)

Question 341847: Determine the nature of the solutions of the equation. 2t^2-7t=0. Are there 2 imaginary solutions, 2 real solutions, or 1 real solution?
Click here to see answer by mananth(12270)

Question 341886: determine the nature of the solutions of the equation. x^2-2=0
Click here to see answer by Jk22(389)

Question 341895: I think this is the right topic. I need help with my Quadratic sequences homework, as I have a very bad teacher, and nearly no one in my class understands what he says.
I need help in finding the nth term for these sequences:
a)7,8,10,13,17
b)2,3,5,8,12
c)1,3,7,13,21
d)5,8,14,23,35
Please help, and if you could show your workings, that would help me a lot.
Click here to see answer by stanbon(57967)

Question 341980: I know that the fomula x= -b/2a is used to solve for the minimum/maximum value of a quadratic formula but what happens when the quadratic formula is a= -6 b=0(?) c= -1. I know that the maximum value= -1 but I dont understand how to solve for it. Please Help Me. Thanks in advance for your help and glorious time.
- Kay
Click here to see answer by jim_thompson5910(28715)

Question 341782: Can you assist me with the following question?
I need to find the x-intercepts for the following equation: y=x^2+4.
Click here to see answer by scott8148(6628)

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