Algebra2

posted by .

a graph with the points (0,-3) (2,-4) (-2,-4)

What would be the domain, range x-intercepts y-intercepts and funtional value..

Help Please?..

  • Algebra2 - incomplete -

    just given three points, there's no way to tell anything in general about the function. All we know is

    the domain includes {-2,0,2}
    the range includes {-4,-3}

    y-intercept at y = -3
    no x-intercept given

    there are many functions which contain these three points:

    y = -|x/2| - 3
    y = 1/2 cos(π/4 x) - 3.5
    y = cos(π/2 x) - 3
    y = -x^2/4 - 3
    y = 1/4 x^4 - x^2 - 3
    and so on

  • Algebra2 -

    Thanks?..
    Same Type of question...

    cAn you tell me if these are maybe right?..

    1. points of (2,2) (-1,4) (2,6)

    Domain:(-4,2,6)
    range:(2,2)
    xIntercept: none
    y-Intercept: none
    functional value: x^2+2

  • Algebra2 -

    domain: {-1,2}
    range: {2,4,6}
    domain is the x-coordinate (1st value)
    range is the y-coordinate (2nd value)

    f(x) is certainly not x^2 + 2
    (-1)^2 + 2 = 3, not 4
    (2,6) fits, but (2,2) does not.

    In fact, since (2,2) and (2,6) contain the same x-value, but different y-values, these pairs are not even a function.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    What would three points on a graph be, graphing the x and y intercepts, with the equation -x + 3y = -9?
  2. Calculus

    Sketch the graph of f(x)=x^2/x-2. Identify the domain, x-intercepts, y intercepts, symmetry, periodicity, asymptotes, increasing and decreasing intervals, local max/min, concavity, inflexion points.
  3. calculus--please help!!

    given the following piecewise function F(x)={x+11 for -9¡Üx<-3 2 for -3¡Üx¡Ü2 2x-6 for 2<x¡Ü5 {--this symbol is to be around all three of the lines. Find: a. the domain b. the range c. the intercepts d. if f continious …
  4. algebra

    Can someone check my answers on exploring conic sections?
  5. algebra

    Can someone check my answers please and if Im wrong please explain. 1) graph 4x^2+4y^2=64. what are the domain and range?
  6. math

    A function f(x) has domain [0,25), range (-∞,5], and intercepts (2,0), i(17,0), 0,9). A function h(x) has domain (-∞,16), range (-∞,42) and intercepts (3,0), (0,-10). Find the domain of each of the following. 1. f …
  7. Calculus

    Given the function f(x)= x√(x+3), Indicate the domain of f(x): ………………………… What are the x – intercepts of the graph of f(x)?
  8. Math

    If a graph of a quadratic function can have 0, 1 or 2 x-intercepts. How can you predict the number of x-intercepts without drawing the graph or (completely) solving the related equation?
  9. quadratic functions

    The graph of a quadratic function can have 0, 1 or 2 x-intercepts. How can you predict the number of x-intercepts without drawing the graph or (completely) solving the related equation?
  10. Math

    Sketch the graph of the following polynomial. (Label all x intercepts, y intercepts, maxima, minima, and identify the range and domain.) f(x)= 1/2( x^2-2x+15)

More Similar Questions