Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 80077: Can someone help me please I do not understand this any portion of it can someone help me please? identify the axis of symmetry, create a suitable table of values, and sketch the graph (including the axis of symmetry).
y=x^2-5x+3
Click here to see answer by stanbon(75887)

Question 80087: If you have 188 feet of fencing to enclose a rectangular region. What is the maximum area? Thanks for the help!!!!!
Click here to see answer by stanbon(75887)

Question 80103: Please HELP me with this Quadratic Function. Sketch the graph of
f(x)=-x2+6x-8. Indentity the vertex and x-intercepts.
f(x)=-x2+6x-8
=-(x2-6)-8
=-(x2-6x+9-9)-8 (I don't understand how you get 9.It said to Factor -1 out of x-terms. I get stuck at that point. I know how to graph it.)

Click here to see answer by jim_thompson5910(35256)

Question 80089: can some one help me with this i have never seen this before and i am very lost and confused.
identify the axis of symmetry, create a suitable table of values, and sketch the graph (including the axis of symmetry).
y=-x^2+6x-2
Click here to see answer by jim_thompson5910(35256)

Question 80176: Write each expression as asingle function or a constant
(sin theta)(csc theta)
Click here to see answer by stanbon(75887)

Question 80179: If a rocket is fired at an initial velocity of 350 meters per second, what is the maximum height it will atain and after how many seconds will it hit the ground? My teacher left me with this equation: h= ho+vot-1/2gt^2 where h= ending height, ho= starting height, vo= initial velocity, and g is gravity (9.8 meters per sec).
Click here to see answer by stanbon(75887)

Question 80192: If the discriminat is negative, would this be a true statement?
The discriminant is negative, so the quadratic has no real-valued zeroes and therefore no solution.
Click here to see answer by vertciel(183)

Question 80191: Determine the number of solutions for the following equation:
x^2 - 4x + 4 = 0
Should you say there are 2 identical solutions or only 1 solution?
Click here to see answer by vertciel(183)

Question 80194: n-5/6n-6 = 1/9 - n-3/4n-4
I tried to my best to type the fractions so I hope this makes sense. Can you help me solve this?
Click here to see answer by stanbon(75887)

Question 80194: n-5/6n-6 = 1/9 - n-3/4n-4
I tried to my best to type the fractions so I hope this makes sense. Can you help me solve this?
Click here to see answer by Edwin McCravy(20054)

Question 80193: n-5 1 n-3
---- = --- - ----
6n-6 9 4n-4
I tried to my best to type the fractions so I hope this makes sense. Can you help me solve this?
Click here to see answer by ankor@dixie-net.com(22740)

Question 80201: Ax^2 +Bx+C=0
Question:this is the standad form of a quadratic, follow the steps for completeing the square and see what you get.
I don't even know where to start!!
Click here to see answer by Earlsdon(6294)

Question 80239: Number problems. Find two consecutive positive integers such that the sum of
their squares is 85.
thanks
Click here to see answer by ankor@dixie-net.com(22740)

Question 80241: Use the quadratic formula to solve each of the following quadratic equations.
3x^2-2x+1=0
thank you!
Click here to see answer by jim_thompson5910(35256)

Question 80240: Use the quadratic formula to solve each of the following quadratic equations.
2x^2-5x=3
thank you
Click here to see answer by checkley75(3666)

Question 80235: Solve each equation for x
x^2+4x+4=7
thanks
Click here to see answer by checkley75(3666)

Question 80228: Solve each of the equations for x
25x^2=13
thanks
Click here to see answer by checkley75(3666)

Question 80195: what are the steps to do a quadratic equation
Click here to see answer by checkley75(3666)

Question 80319: Solve by factoring
4x^2 - 12x + 9 = 0
I came up with -3/2 or 3/2 but it does not work. Thank you for your help
Click here to see answer by sofiyacherni(99)

Question 80328: Hello, I am trying to solve this problem and need help.
Directions are to solve, apparently there will be 6 answers.

Thank you!!!
Click here to see answer by checkley75(3666)

Question 80328: Hello, I am trying to solve this problem and need help.
Directions are to solve, apparently there will be 6 answers.

Thank you!!!
Click here to see answer by mathtutor777(6)

Question 80324: HELP ASAP!!!! An object is propelled vertically upward from the top of a 112-foot building. The quadratic function s(t) = -16t^2 + 176t + 112 models the ball’s height above the ground, s(t) in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
Click here to see answer by ankor@dixie-net.com(22740)

Question 80352: The length of a rectangle is four less than three times the width. The area is 20 square centimeters. Find the dimensions of the rectangle.
Click here to see answer by checkley75(3666)

Question 80348: The sum of two numbers is 12. Their product is 36. Find the two numbers.
Click here to see answer by stanbon(75887)

Question 80242: Construction. A garden area is 30 ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400 ft^2, what is the width of the path?
thank you
Click here to see answer by ankor@dixie-net.com(22740)

Question 80350: The length of a rectangle is four times the width. The perimeter is 150 inches. Find the dimensions of the rectangle.
Click here to see answer by tutor_paul(519)

Question 80427: Can someone help me please?
The average number of diners in a restaurant can be modeled with the function
D(t)= -2t^2+20t+15 , where t is the number of hours after 8:00 A.M. At what time is the number of diners at its maximum?
thanks so much!
Click here to see answer by stanbon(75887)

Question 80444: 5(x)+6=34
Click here to see answer by tutorcecilia(2152)

Question 80472: I am havin such a hard time please help me? The length of one leg of a right triangle is 3 in. more than the other. If the length of the hypotenuse is 8 in., what are the lengths of the two legs?

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

Question 80484: I hope you can help with this word problem. I don't know where to begin and I cannot find an example in the book to go by. Thank you
Problem
Time to swing
The speed T (time in seconds for one complete cycle) of a pendulum is related to the length L(in feet) of the pendulum by the formula 8T^2 = pi^2L. If a child is on a swing with a 10-foot chain, then how long does it take to complete one cycle of the swing.
Hope someone can help please.
Click here to see answer by checkley75(3666)

Question 80491: if f(x)=4x-3 find f(-1)
Click here to see answer by tutor_paul(519)

Question 80487: you have at least $30 in change in your drawer, consisting of dimes and quarters. write and inequality that shows the different number of coins in yur drawer. Can some one please help me with this?
Click here to see answer by checkley75(3666)

Question 80489: rewrite this equation as a function of x
-3x+4y=11
Click here to see answer by checkley75(3666)

Question 80501: help me someone please!!
The length of a rectangle is 1 cm longer than its width. If the diagonal
of the rectangle is 4 cm, what are the dimensions (the length and the width) of the rectangle?
Click here to see answer by checkley75(3666)

Question 80511: Directions: decide whether the graph of the equation opens up or down. Then find the coordinates of the vertex.as in ... y=3x^2 and/or y=2x^2-4x+3
Click here to see answer by stanbon(75887)

Question 80505: a rock 80m up the face of a cliff breaks loose. about how long does it take for the rock to fall to the ground?
Click here to see answer by Edwin McCravy(20054)

Question 80490: graph the function
f(x)=-2x-5
Click here to see answer by tutorcecilia(2152)

Question 80616: The height h in feet of an object after t seconds is given by the function
h=-16t^2+90t+4
how long will it take the object to hit the grown? Round to the nearest thousandth
Click here to see answer by stanbon(75887)

Question 80634: I'm having trouble solving this word problem. The product of 2 positive integers is 30. Find the integers if the larger is 4 less than twice the smaller. We need to represent the variable(s), write the equation, and solve the equation. I believe the 2 positive integers are 5 and 6, but i don't know how to write the equation to be able to solve it. Thank you,
Jennie
Click here to see answer by ankor@dixie-net.com(22740)

Question 80633: We are solving quadratic equation. I tried to sole this problem, but I'm having some trouble. Please help me solve this quadratic equation: . Any help will be appreciated. Thank you,
Jennie

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

Question 80670: If f(x)=5x-1 , find the following
f(a-2)
f(a-2)=
Click here to see answer by praseenakos@yahoo.com(507)

Question 80675: The boundary line for the linear inequality has been graphed. Determine the correct half-plane and complete the graph.
y is greater than 3
Click here to see answer by stanbon(75887)

Question 80666: Graph the function

f(x)- -2x-5
Hint: This is just like the equation y = mx + b

Click here to see answer by praseenakos@yahoo.com(507)

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, 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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, 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