Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 636156: So confused how to do this :find the y-intercept of y=2^x+2

Thanks a bunch~
Click here to see answer by Tatiana_Stebko(1326)

Question 636158: choose the one true statement about y=(2x-1)/(x-1)
a. it has a horizontal asympote at y=0
b. it has an odd function
c. it has no vertical asymptotes
d. it has a vertical asympote at x=1
Click here to see answer by Tatiana_Stebko(1326)

Question 636045: which of these is true about 7x^2-9x-11=0
a. the sum of its roots is 7/9
b. the product of its roots is 9/7
c. the sum of its roots is 11/9
d. the product of its roots is -11/7
ty
Click here to see answer by Tatiana_Stebko(1326)

Question 636436: Need helping solving this equation. I feel like I'm messing up.
Multiply
(4√7- 12√6)(3√7 + 9√6)
Click here to see answer by MathTherapy(1421)

Question 636492: x2+3x+2=0.
Click here to see answer by reviewermath(500)

Question 636499: f(x)=x2 + 2x - 9
determine whether the given quadratic function has a minmum or maximun value. then find the coordinated of the mininmun or maximun point.
Click here to see answer by josmiceli(9649)

Question 636516: A)Apply the quadratic formula to find the roots (x-intercepts) of the given function.
B)Graph the function – You will also need to find the vertex of each parabola, and most likely additional points to complete the graph. Label the roots (if plot-able) and the vertex with their ordered pairs
1. f(x)= x^2+ 4
2. g(x)= x^2+ x+ 12
Click here to see answer by ewatrrr(10682)

Question 636680: x^2-4x=-4
Click here to see answer by asuar010(324)

Question 636820: use the intermediate value theorom to show that the polynomial function has a zero in the given interval x^5-x^4+2x^3-5x^2-13x+20; [1.3, 1.9]
Click here to see answer by ewatrrr(10682)

Question 636818: x^4+9x^3+12x^2-11x+21=0 solve the equation in the real number solution
Click here to see answer by ewatrrr(10682)

Question 636831: find a polynomial f(x) with real coefficients having the given degree and zeros
Degree 5; zeros: -7, i; 2+i
Click here to see answer by ewatrrr(10682)

Question 636842: for the following equation, state the value of the discriminant and then describe the nature of the solutions 19x^2+3x-15=0
Click here to see answer by jim_thompson5910(28476)

Question 636830: Find the remaining zeros?
Degree=4 Zeros=9i,7,-7
Click here to see answer by ewatrrr(10682)

Question 636837: find the complex zeros of the polynomial function. write f in factored form
x^4+10x^3-2x^2+90x-99
Click here to see answer by ewatrrr(10682)

Question 636848: X^4+10x^3-2x^2+90x-99
find the complete zeros of the polynomial dunction. write f in factored form
Click here to see answer by ewatrrr(10682)

Question 637013: 8/x - 3/x+1 = 5
Click here to see answer by checkley79(3039)

Question 636980: write the expression 9x^4+20x^2+12 in quadratic form
Click here to see answer by jsmallt9(3296)

Question 636829: X^5-x^4+2x^3-5x^2-13x+20; [1.3, 1.9]?
use the intermediate value theorom to show that the polynomial function has a zero in the given interval
Click here to see answer by jsmallt9(3296)

Question 637033: I believe this is a Quadratic Equation...
I need to solve the equation graphically by finding x-intercepts. Confirm by using factoring to solve the equation.
4x^2-8x+3=0
Please help!
Click here to see answer by ewatrrr(10682)

Question 28502: 1) Using the quadratic equation 2/3^2+X=1/2, perform the following
Click here to see answer by LB1973(1)

Question 637120: how do you solve x/5 =2/6

Click here to see answer by jim_thompson5910(28476)

Question 637203: We are supposed to factor polynomials and I just don't know what I'm doing!
3x^2-12x-63
Click here to see answer by jim_thompson5910(28476)

Question 637203: We are supposed to factor polynomials and I just don't know what I'm doing!
3x^2-12x-63
Click here to see answer by stanbon(57219)

Question 637180: Why does the x^2 coefficient in a parabola determine the direction it opens?
Click here to see answer by stanbon(57219)

Question 637219: Quadratic functions are often used in economics to represent both the production cost function and the revenue function. Suppose that the cost C, in dollars of producing x mobile phones is given by
C(x) = 400 +8x + 0.1x2
Whilst the revenue function R, also in dollars is
R(x) = x(32 = 0.1x)

A point where the cost and the revenue are equal is called a break-even point.
(a) How many mobile phones need to be produced to break even? You must use algebra to answer this question.

(b) Find the cost(s) and revenue(s) corresponding to your solution(s) to part (a).

(c) Draw the graphs of both functions on the same set of axes for the domain 0 ≤ x ≤ 150.
Clearly indicate on your graph where all your solutions to parts (a) and (b) are. This graph may be drawn by hand or with software. Give your graph a title and label its axes appropriately.

Click here to see answer by solver91311(16868)

Question 637266: solve using quadratic formula..
2x^2 - 4x + 3 =0
Click here to see answer by solver91311(16868)

Question 637359: A rectangular picture measuring 4 in. by 10 in. is surrounded by a frame with uniform width x. Write a quadratic function in standard form to show the combined area of the picture and frame.
Click here to see answer by Stitch(352)

Question 637369: The height of a soccer ball that is kicked from the ground can

be approximated by the function:

y = -16⋅x2 + 80⋅x

where y is the height of the soccer ball in feet x seconds after it is kicked.

Find the time it takes the soccer ball to reach its maximum height: seconds

What is the soccer ball’s maximum height: feet

Find the time it takes from the moment the soccer ball is kicked until it returns to the ground: seconds

Click here to see answer by nerdybill(6948)

Question 637395: The height of a curved support beam can be modeled by
f(x) = -x^2/288+18
Find the height and width of the beam.
Click here to see answer by ewatrrr(10682)

Question 637437: (5a^0)(A^2)
Click here to see answer by MathLover1(6614)

Question 637544: Solve (x^2-3)^2-11(x^2-3)+30=0
Click here to see answer by DrBeeee(376)

Question 637582: solve the equation for y
y^3/2 -12y^1/2 +32y^-1/2 =0
HELP!!! TY!
Click here to see answer by meetkisai(17)

Question 637620: give the quadratic equation whose root are 4 and 7

Click here to see answer by Horlaye(4)

Question 637641: u^4/3- 17u^2/3 = -16
Click here to see answer by god2012(108)

Question 637675: for what value of k does the equation kt^2 + 5t +2 = 0, have exactly one real solution for t?
Click here to see answer by stanbon(57219)

Question 637696: Solve 36⋅x2 - 81 = 0 by using square roots.
Click here to see answer by MathLover1(6614)

Question 637693: A kicker starts a football game by "kicking off". The quadratic function y = -12⋅x2 + 36⋅x models the football's height after x seconds. How long is the football in the air?
Click here to see answer by ankor@dixie-net.com(15624)

Question 637777: The solutions to a quadratic equation are -4 and 4. What is the equation of its axis of symmetry?

Click here to see answer by lwsshak3(6460)

Question 637857: for each given axis of symmetry and point on a parabola, determine another point on the parabola. a. axis of symmetry x=2; given point (0,5):
b. axis of symmetry x=-5; given point (-7,3):
c. axis of symmetry x=1/2; given point (-2,7):
d. axis of symmetry x=5; given point (10,0):

Click here to see answer by stanbon(57219)

Question 638010: 27x0…5+ 3x - 10 = 0 solve the following quadratic equation by factoring
Click here to see answer by Olowoyeye Ajisola(2)

Question 638010: 27x0…5+ 3x - 10 = 0 solve the following quadratic equation by factoring
Click here to see answer by MathTherapy(1421)

Question 638159: 2m^2-m-15=0 quadratic problem, can you help me solve this step by step with text along side? Im having so many problems solving these types of problems, thanks and God Bless
Click here to see answer by reviewermath(500)

Question 638294: a=6s^2, for s
Click here to see answer by MathLover1(6614)

Question 638455: The difference of two numbers is 16 and the sum of their squares is 130. Using algebraic methods determine what are the numbers?
Click here to see answer by lwsshak3(6460)

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, 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