Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 236217: find the vertex, the line of symmetry and the maximum or minimum value of f(x). Graph the function f(x)=1/2(x+6)^2+3
Click here to see answer by Edwin McCravy(2878)

Question 236217: find the vertex, the line of symmetry and the maximum or minimum value of f(x). Graph the function f(x)=1/2(x+6)^2+3
Click here to see answer by stanbon(25959)

Question 236220: use quadractic equation to find the x intercept if any. then evaluate the function for several values of x. f(x)=-x^2-2x-1
Click here to see answer by checkley77(6671)

Question 236208: 4y^2-7y-15=0
Click here to see answer by jim_thompson5910(13679)

Question 236187: x^-x=1 what is the solution set{ }?
quadratic formula.
Click here to see answer by jim_thompson5910(13679)

Question 236058: If the two solutions of a quadratic equation =-4 and 3 and c=4 then how do I solve this problem and write it in standard form?
Click here to see answer by Theo(547)

Question 236111: what are the two binomial factors of 6s^2+40s-64
Click here to see answer by stanbon(25959)

Question 236090: I must use the discriminant to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. I am having trouble understanding how to find the discriminant and then find the solutions.
I do not need to find the roots.
3z^2 + z - 1 = 0
Click here to see answer by philline_palana(8)

Question 236062: solve showing and explaining all steps using quadractic formula,
x^2+2x-8=0
Click here to see answer by jim_thompson5910(13679)

Question 236052: A student makes a $10.25 purchase at the bookstore with a $20 bill. The store has no bills and gives the change in quarters and fifty-cent pieces. there are 30 coins in all. how many of each kind are there?
Click here to see answer by checkley77(6671)

Question 236057: factor
Click here to see answer by checkley77(6671)

Question 236055: The Everton college store paid $1903 for an order of 49 calculators.The store paid $11 for each scientific calculaor. The others,all graphing calculators,cost the store $55 each. How many types of each calculator was ordered?
Click here to see answer by jojo14344(1483)

Question 235987: How would you write the translation of 16 increased by b
Click here to see answer by rfer(2588)

Question 235961: I need to find the solution for h. the problem is 2h^2 - h - 3 = 0
Click here to see answer by stanbon(25959)

Question 235834: I am having a tough time with these problems on this one I must use the discriminate to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. It is not necessary to find the roots just determine the number of types of solutions.
4/3x^2 - 2x + 3/4 =0
Click here to see answer by rfer(2588)

Question 235891: For a quadratic function, how do you find the x-intercept(s)
Click here to see answer by nyc_function(155)

Question 235873:
27 + ( 3 x 6 ) / 2
I have no idea what the forward slash is standing for is it division?
Click here to see answer by Alan3354(5863)

Question 235833: I am having a tough time with these problems on this one I must use the discriminate to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. It is not necessary to find the roots just determine the number of types of solutions.
2x^2+x-1=0
Click here to see answer by checkley77(6671)

Question 235837: I have a tough time with word problems.
A rectangular parking lot is 50ft longer than it is wide. Determine the dimensions of the parking lot if it measures 250 ft diagonally
Click here to see answer by checkley77(6671)

Question 235838: I am having trouble with the story problems

Three consectutive even integers are such that the square of the third is 76 more than the square of the second, Find the three integers.
Click here to see answer by checkley77(6671)

Question 235839: Another story problem I am having trouble with
A photo is 3 inches longer than it is wide. a 2-inch border is placed around the photo making the total area of the photo and border 108in^2. What are the dimensions of the photo
Click here to see answer by ankor@dixie-net.com(6567)

Question 235836: I am having a tough time with these problems on this one I must use the discriminate to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. It is not necessary to find the roots just determine the number of types of solutions.
m^2 + m + 1 = 0
Click here to see answer by Theo(547)

Question 235506:
2x+2+ x - 1 = 180
Click here to see answer by Jeff Gordon(22)

Question 235507:
4+3x+2+ 2x+ 3+4 = 180
Click here to see answer by Jeff Gordon(22)

Question 235510:
m+2 + m + 1 = 180
Click here to see answer by Jeff Gordon(22)

Question 235727: What does x equal in the quadratic equation
please and thank you.
Click here to see answer by josmiceli(2979)

Question 235727: What does x equal in the quadratic equation
please and thank you.
Click here to see answer by Jeff Gordon(22)

Question 235622: 6.
Solve the equation by factoring.
z2 + 3z + 2 = 0 (1 point)
* z = –2 or z = –1
* z = –2 or z = 1
* z = 2 or z = –1
* z = 2 or z = 1
Click here to see answer by stanbon(25959)

Question 235626: 8.
Find the value of n such that x2 + 4x + n is a perfect square trinomial. (1 point)
* 8
* 2
* 4
* 16
Click here to see answer by Alan3354(5863)

Question 235508: For these problems I need use the discriminant to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. It is not necessary to find the roots; just determine the number and types of solutions.
2x^2 + 5x + 5 = 0
Click here to see answer by stanbon(25959)

Question 235498: What is the accumulated sum of each of the following streams of
payments?
a. $500 a year for 10 years compounded annually at 5 percent

Click here to see answer by stanbon(25959)

Question 235484: s(t)= -16t^2+200t+4

the quadratic function models the fireworks height, s(t) in feet, t seconds after they launch.
A. when should the fireworks go off so they explde at the greatest height?
B. what is the greatest height attainded by the fireworks?
Click here to see answer by solver91311(4818)

Question 235457: -0.5x^+175x-3300=0
Click here to see answer by Alan3354(5863)

Question 235457: -0.5x^+175x-3300=0
Click here to see answer by stanbon(25959)

Question 235423: what is the solution and working out to
Click here to see answer by checkley77(6671)

Question 235221: I am supposed to write a quadratic equation in the variable x as having the given numbers as a solution.Type the equation in standard form ax^2 + bx + c =0
Solution: 6 is the only solution
Click here to see answer by ankor@dixie-net.com(6567)

Question 235130: Solving Quadratic Equations by graphing; there is either 1, 2, or no real solutions... can you help me with this?
x^2-2x-24=0
Click here to see answer by solver91311(4818)

Question 235135: I need help with how to solve this:write a quadratic equation in standard form that passes through these points: (-1, 5), (0,3), (3,9).
I know it's a systems of equations, but the variables are confusing me... I got
5 = -A^2 - B + C
3 = C, and
9 = 3A^2 + 3B + C
I tried substituting 3 for c, but I don't know what to do from there
show work please and explain

Click here to see answer by jim_thompson5910(13679)

Question 235119: I must use the quadratic formula to solve each equation. The one I'm having trouble with is in a different form to begin with and I can't figure out how to get it into standard form:
x= [2(x+3)]/(x+5)
I've tried distributing the numerator and then subtracting it from that side to the other side, and multiplying whats left of the fraction by its denominator, but its not working... PLEASE help! THANK YOU SO MUCH!
Click here to see answer by Edwin McCravy(2878)

Question 234850: I am just not understanding these type of problems. For this problem I need to use the discriminate to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. It is not necessary to find the roots; just determine the number and types of solutions.
z^2+z+1=0
Click here to see answer by ankor@dixie-net.com(6567)

Question 234851: For this problem I need to use the discriminate to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. It is not necessary to find the roots; just determine the number and types of solutions
(3)^1/2y^2 -4y-7(3)^1/2=0
Click here to see answer by ankor@dixie-net.com(6567)

Question 235022: Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?
Click here to see answer by josmiceli(2979)

Question 235008: how do you solve and check this algebra equation 2/3x=42
Click here to see answer by Stitch(34)

Question 234995: X sqaured-6x=135
Click here to see answer by Stitch(34)

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