Math

determine the domain. express in interval notation.

y = rt(x^2-7x+10)

i know this much-
y = rt[(x-5)(x-2)]

now what do i do?


If you mean by rt the square root of, then the domain is all positive values of (x^2 -7x + 10). So the answer to your question is when is that expression negative. You have nicely factored it into the product of two factors, ab. ab can be negative if a or b is negative, but not both. What values is this? For a starter, check when x=3.


hi

  1. 👍 0
  2. 👎 0
  3. 👁 73
asked by Ben

Respond to this Question

First Name

Your Response

Similar Questions

  1. Pre-Cal: Domain

    [Note: I really need help on these Domain questions. I've been struggling with this all day] -Consider the following: f(x)= 5/x , g(x)= 7/(x+7) -Find the solutions to the following: 1). (f+g)(x) 2). Domain of (f+g)(x) [Use

    asked by Ashley on June 9, 2016
  2. Alg II Please HELP

    Determine the implied domain of the given function. Express in interval notation (-4x^(2)-3x)/(2)

    asked by Cymi on March 8, 2013
  3. Precalculus

    determine the domain of the function and express in interval notation square root of x-9 =y show work

    asked by Arielt on March 1, 2010
  4. Precalculus(URGENT)

    determine the domain of the function and express in interval notation square root of x-9 =y show work

    asked by Arielt on March 1, 2010
  5. math Help

    Okay so i know the domain of ~fx= 1 / (x^3-4x)~ is all real numbers except -2, 0, 2 so how do i express it in INTERVAL NOTATION? Thank You!

    asked by emi on August 24, 2010
  6. Math

    Suppose a function f(x) is defined on the domain [-8,4]. If we define a new function g(x) by g(x) = f(-2x), then what is the domain of g(x)? Express your answer in interval notation.

    asked by Candice on April 6, 2016
  7. Math

    . The volume of a rectangular box is given by the expression V = (120 − 6w)w2, where w is measured in inches. a. What is a reasonable domain for the function in this situation? Express the domain as an inequality, in interval

    asked by Anonymous on February 13, 2017
  8. math

    if i know the domain of an equation is any real number except 3/7 how can i express it in interval notation? Thanks!

    asked by leslie on August 23, 2010
  9. Solve Inequality

    Solve the inequality. Express your solution using interval notation and please show all of your work. x(x + 6)(8 – x) >= 0 I need help, I guess I'm not understanding the interval notation portion. I know, that when 0

    asked by Armando on May 29, 2011
  10. algebra

    Graph the following function using the technique of shifting, compressing, strecthing and/or reflecting Find domain and range of the function g(x)=2sqrtx-3+7 domain=___ (interval notation) range=_____ (interval notation)

    asked by sharday on May 27, 2013

More Similar Questions