Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 897132: Please help me. I have no clue on what numbers to use for this parabola since my Y intercepts come out as big numbers.
I need to sketch the parabola with the equation 4x^2-16x+15 and label the vertex, axis of symmetry, x and y intercepts. Should I divide by 4?

Click here to see answer by richwmiller(17219)

Question 897456: What are the different methods for solving quadratic equations? Give an example. Please help me and thank you!
Click here to see answer by richwmiller(17219)

Question 897699: Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.)
(x + a)2 − b2 = 0, a and b are real numbers
Click here to see answer by lwsshak3(11628)

Question 897839: Solve each equation x^2=100/144
Click here to see answer by Fombitz(32388)

Question 897847: The Quadratic Formula gives us the solutions of the equation ax2 + bx + c = 0.(Enter your answers as a comma-separated list.)
(a) State the Quadratic Formula :
x =
(b) In the equation1
2
x2 − x − 6 = 0, a =
, b =
, and c =
So the solution of the equation is x = 5

Click here to see answer by ewatrrr(24785)

Question 897846: 12b^8c^3�2b^2c simplify the expression
Click here to see answer by ewatrrr(24785)

Question 897842: 12b^8c^3�2b^2c
Click here to see answer by ewatrrr(24785)

Question 897911: One week, a shops sold 42 boxes of stationary, some at $5 a box and some at $7 a box. The total value of the stationary sold was $246. How many boxes were sold at each price?
Click here to see answer by ewatrrr(24785)

Question 897396: Three consecutive odd integers are such that the square of the third integer is 65 less than the sum of the squares of the first two. One solution is -7, -5, and -3. Find three other consecutive odd integers that also satisfy the given conditions.
Click here to see answer by Fombitz(32388)

Question 898531: Put Into Vertex Form:
A)2x^2+3x+5
B)3x^2-4x+5
C)2x^2-3x+3
Please Help
God Bless you.
Click here to see answer by josgarithmetic(39616)

Question 898531: Put Into Vertex Form:
A)2x^2+3x+5
B)3x^2-4x+5
C)2x^2-3x+3
Please Help
God Bless you.
Click here to see answer by Edwin McCravy(20054)

Question 898498: Find all solutions, real and complex, of the equation. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
x^3 + 4x^2 + 16x + 64 = 0

Click here to see answer by josgarithmetic(39616)

Question 898711:
I do not understand how to solve.
Click here to see answer by Jc0110(165)

Question 899061: How do I find the average rate of change of
f(x) = sqrt (4x+1)
over the interval [0,2]
Click here to see answer by Fombitz(32388)

Question 899079: whatare the steps to solve 4x-2(x+3)=x+1
Click here to see answer by ewatrrr(24785)

Question 898714: How do you solve x^2 = 30 - 13x graphically? What do I do with the x^2?
Click here to see answer by Fombitz(32388)

Question 898714: How do you solve x^2 = 30 - 13x graphically? What do I do with the x^2?
Click here to see answer by MathTherapy(10551)

Question 899123: Jake drives a tractor from one town to another, a distance of 160 kilometers. He drives 8 kilometers per hour faster on the return trip, cutting 1 hour off the time. How fast does he drive each way?
Click here to see answer by lwsshak3(11628)

Question 899375: Hey, how would you solve:
3.5*10^-6(15-s)^2=2.5*10^-6*s^2
i know the answer is 0.3s^2 - 30s + 225 = 0
but how do i get here?
Thanks, its appreciated,
Zane
Click here to see answer by Fombitz(32388)

Question 899447: In which equations was the GCF factored out of the expression on the left side?
Choose all answers that are correct.

A.
24 + 28 = 4 � (6 + 7)

B.
20 + 16 = 2 � (10 + 8)

C.
12q + 18 = 6 � (2q + 3)

D.
14 + 7t = 7 � (2 + t)

Click here to see answer by Fombitz(32388)

Question 899489: Solve the equation by completing the square.
4x(squared) - 8x - 3 = 0
I go to 4x(squared) -8x +16 = 19
but then didnt know how to factor it
Click here to see answer by josgarithmetic(39616)

Question 899481: Solve by any method:
8x^2= -22x+6
Click here to see answer by josgarithmetic(39616)

Question 899481: Solve by any method:
8x^2= -22x+6
Click here to see answer by MathTherapy(10551)

Question 899519: 9x^2 = 36
Click here to see answer by swincher4391(1107)

Question 899716: Solve by factoring the quadratic equation:
x square -3x = 4
Click here to see answer by stanbon(75887)

Question 899804: Vertex form for I have tried it and the result is (h=2);(k=0) thank you :)
Click here to see answer by josgarithmetic(39616)

Question 900631: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 245 square feet and the dimensions of the pool are 15 feet by 13 feet, how wide is the walk?
Click here to see answer by josgarithmetic(39616)

Question 900754: Solve by factoring: a2 -5a-14 = 0
Click here to see answer by ewatrrr(24785)

Question 900106: X-INTERCEPTS AND VERTEX TO X^2+10X+22
Click here to see answer by Fombitz(32388)

Question 901041: How would I write a quadratic function g(x) with a vertex of (-2,-4) and a rate of change from -52 ≤ x ≤ -18?
Click here to see answer by Alan3354(69443)

Question 901085: Which is the solution to this equation?
x^2+3x-10=0
a.0
b.-2
c.-5
d.-10
Click here to see answer by richwmiller(17219)

Question 901188: give a possible quadratic equation (in vertex form) with a maximum turning point at (5, -4)
Click here to see answer by reviewermath(1029)

Question 901205: A group of students is on a sightseeing tour. The total fare is $120 and this is to be shared equally among students.if two more students join the tour, each will pay $2 less. Find the original number of students in the group.
Click here to see answer by JulietG(1812)

Question 901278: transform the equation to vertex form -x2 -16x +12 then find the zeros of the function
Click here to see answer by Theo(13342)

Question 901351: there are 35 people in a room . there are seven more males then females in the the room.How many males are there? how many females? write an equation
Click here to see answer by ewatrrr(24785)

Question 901581: Any help on how to solve for x in this problem would be welcomed. Thank you for your time and knowledge.
Solve the equation for x.
ax^2 - (2a + 1)x + (a + 1) = 0 (a > 0)
Click here to see answer by mananth(16946)

Question 901578: Any help on how to solve for x in this problem would be welcomed. Thank you for your time and knowledge.
Solve the equation for x.
ax2 − (2a + 1)x + (a + 1) = 0 (a > 0)
Click here to see answer by solver91311(24713)

Question 901667: 5^2 + x^2 + 30^2 = 31^2
Click here to see answer by Edwin McCravy(20054)

Question 901424: Prove that the value 2x^2-8x+9 cannot be less than 1
Click here to see answer by Fombitz(32388)

Question 901712: 1.03x^2+2.02x-1.015=0
solve using quadratic formula.
I have a=1.03 b=2.02 c=-1.015
and plugged into quad formula and got x= 3.41 and .6267
can you check if i did this right or was i suppose to do something before setting the a,b,and c using the original equation.
Thanks in advance.
Click here to see answer by ewatrrr(24785)

Question 901773: Determine the vertex of the graph of the quadratic function f(x)=x2 +4
Click here to see answer by harpazo(655)

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