Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 197246: question: y= 3 x^2 + x + 1
we need: axis of symmetry, coordinates of the vertex of the graph, and the graph.
but if you give me the coordinates i'll be happy.
STEP by STEP please

thanks.
Click here to see answer by solver91311(24713)

Question 197254: Quadratic equation: x^2-12=0
Click here to see answer by jim_thompson5910(35256)

Question 197253: can you help me with these problems?? thank you so much
1.)
2.)
3.)
4.)
Click here to see answer by jim_thompson5910(35256)

Question 197253: can you help me with these problems?? thank you so much
1.)
2.)
3.)
4.)
Click here to see answer by solver91311(24713)

Question 197272: find the axis of symetry and the vertex of the graph of the function. Y=2xsquared-8x+6
Click here to see answer by solver91311(24713)

Question 197023: Quadratic Functions Word Problem
2. Find two numbers whose difference is 14 and whose product is a minimum. use "Let Statement". Thank you!!!
Click here to see answer by Alan3354(69443)

Question 196945: Find two numbers whose difference is 14 and whose product is a minimum. Be sure to use "let statement".
Click here to see answer by josmiceli(19441)

Question 197089: How do you find the equivalent factored form of a quadratic expression?
1. 2x^2+3x+1
2. 3x^2-x-4
3. x^2-9
4. n^2-4
Click here to see answer by stanbon(75887)

Question 197313: Having troubles with these word problems,
1. If the sides of a square are lenghtend by 5cm, the area becomes 121cm. What is the lenght?
2. If a pro basketball player has a vertical leap of about 30 inches, what is his hang time? formula is V = 48T^2
3. Jack mows the lawn in 5 hours, Marilyn in 7 hours. How much time will it take if they mow lawn together?
Thank you in advance for your help...
Click here to see answer by ankor@dixie-net.com(22740)

Question 197346: If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
Click here to see answer by Edwin McCravy(20054)

Question 197330: Find b^2 - 4ac and the number of real solutions to
equation
-2x^(2)+5x-6=0
Click here to see answer by jim_thompson5910(35256)

Question 197325: 8=sqrt(x)sqrt(x)sqrt(x)sqrt(x...), find the value of x.
Click here to see answer by RAY100(1637)

Question 197385: How do I solve this equation?

Click here to see answer by Alan3354(69443)

Question 197385: How do I solve this equation?

Click here to see answer by RAY100(1637)

Question 197444: Hi!
Can you help me with changing an equation 52=4x-4y into ax+by=c? I am very confused!
Thanks in advance!
Lynne
Click here to see answer by jim_thompson5910(35256)

Question 197469: Can someone help me with this problem: x^2 + 3/2x = 3
Click here to see answer by josmiceli(19441)

Question 197533: How do I graph y=-x squared?

Click here to see answer by vleith(2983)

Question 197604: What is the vertex of the parabola: y= -2x^2+2x+4? When i solved it, i got the vertex as (-2,0) but all the online calculators say the vertex is (.5,4.5). Why is this? can you explain how to find the vertex?
Click here to see answer by stanbon(75887)

Question 197570: x=(1/20)(y-1)^2+2
what is the vertex,focus,wat direction is opens,axis of symmetry and directrix
Click here to see answer by stanbon(75887)

Question 197703: How can you identify the proper way to follow for the equation?
out of these ways:
1. Square roots - when x^2 is present, when x^2 and x is present
2. graphing
3. factoring
4. quadratic formula
I understand graphing and square roots (somewhat), but when would you use factoring and the quadratic formula? what is the quadratic formula? Can you list the steps of how to do the factoring and quadratic formula? Can you use measures of central tendancy (mean,median,mode) in quadratic functions? Do you have to find the GCF for all of the problems? Would you be able to provide an example problem for when you would factor, and another for when you would use quadratic formula, please?
I am sorry this is so many questions, when you reply can you either do so in complete sentences or with my message above the answers, please?
Thanks, I hope this will help.

Click here to see answer by jim_thompson5910(35256)

Question 197839: Please help me with this multiple choice question:

Which quadratic equation has the roots 3+i and 3-i?

a) x^2 + 6x-10 = 0 b) x^2 + 6x + 8= 0 c) x^2 - 6x+10 = 0 d) x^2- 6x-8 =0
thank you!
Click here to see answer by edjones(8007)

Question 197844: 9. Write a quadratic equation in factored form for each situation.
a) The roots of the equation are 5 and 4.
b) The roots of the equation are -2 and 3.
Thanks
Click here to see answer by Mathtut(3670)

Question 197843: 8. A rectangle has dimensions x+10 and 2x-3. Determine the value of x that gives an area of 54 cm^2.
Thank you!!!
Click here to see answer by solver91311(24713)

Question 197754:
Click here to see answer by Mathtut(3670)

Question 197841: Quadratic Equations
7. A basketball is tossed from the top of a 3-m wall. The path of the basketball is defined by the relation y=-x^2+2x+3, where x represents the horizontal distance travelled, in metres, and y represents the height, in metres, above the ground. How far has the basketball travelled horizontally when it lands on the ground?
Thank you very much!!!
Click here to see answer by stanbon(75887)

Question 197849: 10.a) Write a quadratic equation in the form ax^2+bx+c=0 with roots of 6 and -7.
b)What would happen to the roots if you multiplied both sides of the equation in part a) by 3? Explain.
thanks
Click here to see answer by Mathtut(3670)

Question 197851: Can you please help me to solve this equation (x+10)(2x-3)=54? I dont know how to solve it using quadratic equations. Thank you very much!!!
Click here to see answer by checkley77(12844)

Question 197850: 11. Write a quadratic equation with roots of 2/3 and -4/5 in the form ax^2+bx+c=0, where a, b, and c are integers.
Thanks
Click here to see answer by Mathtut(3670)

Question 197850: 11. Write a quadratic equation with roots of 2/3 and -4/5 in the form ax^2+bx+c=0, where a, b, and c are integers.
Thanks
Click here to see answer by solver91311(24713)

Question 197853: What is the slope of the line with the equation 2x + 3y + 6 = 0 ?
Click here to see answer by Mathtut(3670)

Question 197853: What is the slope of the line with the equation 2x + 3y + 6 = 0 ?
Click here to see answer by checkley77(12844)

Question 197854: Would you please help me with this question..
In triangle ABC, AC = 18, BC =10, and cosC = 1/2. Find the area of triangle ABC to the nearest tenth of a square unit.
Thanks!

Click here to see answer by stanbon(75887)

Question 197866: Simplify your results. x2=x-10
Click here to see answer by edjones(8007)

Question 197874: Please help me solve these problem.
t^2-2t=15
0.9a^2+5.4a-4=0
x^2+10x+c
Find C
Thank You So Much!
Click here to see answer by jim_thompson5910(35256)

Question 197929: vi.A function gives the value of C as 2 � (22/7) � r. Find C when r = 7 cm and r = 91 cm.
Would someone please help me out with this problem please?
Click here to see answer by vleith(2983)

Question 197972: can you please help me solve by using the quadratic formula and leave irrational roots in the simplest radical form
Click here to see answer by jim_thompson5910(35256)

Question 197967: can you please help me solve the following and express irrational solutions in simplest radical form: ((( (n-5)^2=20 )))
Click here to see answer by solver91311(24713)

Question 197967: can you please help me solve the following and express irrational solutions in simplest radical form: ((( (n-5)^2=20 )))
Click here to see answer by jim_thompson5910(35256)

Question 198050: At a recent egg - tossing contest, one student threw an egg 80 feet. Someone in the crowd observed that egg reached a maximum height of 16 feet. What equation could be used to model the path of the tossed egg.
Click here to see answer by arallie(162)

Question 198181: Use the Quadratic formula to solve the equation?
2x squared + x - 1 = 0
Click here to see answer by solver91311(24713)

Question 198210: Please Help Me With this Question. "Solve" Xsquared + 5x + 1 = 0
Click here to see answer by stanbon(75887)

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