Graphing

I need to find the symmetry of a polynomial function graph. Is this correct?

f(x)=x^2+2x-1

x=-6/2x=-2/2*1
x=-2/2=-1
It is symmetric about x=-1/-2

  1. 👍 0
  2. 👎 0
  3. 👁 63
asked by Bethany
  1. So I'm a bit confused to what you have done >.<.. To find the symmetry for a trinomial it is 2ax + b = 0. So you'll have to use this equation and solve for x. If you haven't learned this equation yet, a is the coefficient of x^2 and b is the coefficient of x.

    1. 👍 0
    2. 👎 0
  2. Oh NVM, I see what you did now >.<. You were correct up to x=-2/2=-1. However, your answer is x = -1/-2(which is 1/2)? How did x go from -1 to 1/2 xD?

    1. 👍 0
    2. 👎 0
  3. My answer is suppose to be x= -1/2. Is that correct?

    1. 👍 0
    2. 👎 0
    posted by Bethany

Respond to this Question

First Name

Your Response

Similar Questions

  1. math-please help,need quickly

    find the slant asymptote of the graphof the rational function. 1.f(x)=x^2-x-2/x-7 y=? 2. determine the symmetry of the graph of f. a. the graph has y-axis symmetry f(-x)=f(x) b. the graph has orgin symmetry f(-x)= -f(x) c. the

    asked by anonymous on January 9, 2013
  2. Algebra-Polynomails

    Please explain to me orgin of symmetry, y-axis semmetry, or if its neither. 1. Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither. f(x) = 4x^2 - x^3 -this is how I did it:

    asked by Sam on October 23, 2007
  3. Alegrba

    Please check my answers. Also, can I see some graphs of y-axis symmetry, orgin of symmetry, or neither? Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither. f(x) = 4x^2 - x^3 -My answer:

    asked by Aimee on October 15, 2007
  4. Functions

    How do you determine (without graphing) if the polynomial has line symmetry about the y-axis, point symmetry about the origin, or neither. The function is: f(x)= -x^5 + 7x^3 + 2x

    asked by Seinna on June 3, 2012
  5. College Algebra

    1.Answer the following for the given quadratic function. f(x) = -2x^2 - 8x - 13 (a) does the graph of f open up or down? (b) what is the vertex (h,k) of f? (c) what is the axis of symmetry? (d) what are the intercepts? (e) how is

    asked by Kameesha on August 4, 2012
  6. math

    What is the equation for the line of symmetry for the graph of this function? function y = x2 - 4x - 5, if you have a graphing calulator you can put it in there, or just graph it on a piece of paper using a T chart. find it by one

    asked by kim on February 25, 2007
  7. pre calculus

    find the following for the function f(x)=(x+3)^2(x-1)^2 a.) find the x and y intercept of the polynomial function f. b.)find the power function that the graph of f ressembles for large values of lxl. c.)determine the maximum

    asked by shirley on April 29, 2013
  8. calculus

    I have two questions, please help. 1. Uss completing the square to describe the graph of the following function. Support your answers graphically. f(x)= -2x^2+4x+7 please show work. 2. Can someone help me to graph this function?

    asked by Heather-needing help!!!! on December 18, 2012
  9. Math2

    Sketch the graph of this quadratic function: f(x)= 3(x-2)^2 -10. Be sure to explain the steps you take. **I don't need help with the graph part but I need to find the x and y intercepts, the equation of the axis of symmetry and

    asked by Heaven on April 24, 2016
  10. Graphs of polynomial functions

    What do polynomial functions look like? And what can be consider a polynomial function? Would a graph that is like an upside down V be considered as a graph of a polynomial function?

    asked by Jessi on October 9, 2007

More Similar Questions