Parent Functions Overview

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Questions and Answers

What is the equation of the Linear Parent Function?

  • y = ax + b
  • y = √x
  • y = x (correct)
  • y = x^2

What is the simplest parabola represented by the Quadratic Parent Function?

y = x^2

The Absolute Value Function contains an algebraic expression without absolute value symbols.

False (B)

Where do you start graphing the Cubic Parent Function?

<p>(0, 0)</p> Signup and view all the answers

What type of function is the Logarithmic Parent Function the inverse of?

<p>Exponential Function (D)</p> Signup and view all the answers

What is the function notation for the Rational Parent Function?

<p>f(x) = 1/x</p> Signup and view all the answers

Exponential functions have the form y = _____

<p>ab^x</p> Signup and view all the answers

What is the parent function for functions of the form f(x) = √x - a + b?

<p>f(x) = √x</p> Signup and view all the answers

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Study Notes

Linear Parent Function

  • Defined by the equation y = x with a constant slope.
  • Domain and range include all real numbers.

Quadratic Parent Function

  • Simplest form is y = x^2, resulting in a parabola.
  • Graph passes through the origin (0,0).
  • Situated primarily in Quadrants I and II.

Absolute Value Function

  • Features algebraic expressions enclosed within absolute value symbols.
  • Outputs only non-negative values regardless of the input.

Cubic Parent Function

  • Expressed as f(x) = x^3, starting at the origin (0, 0).
  • Characterizes a curve that extends into all four quadrants.

Logarithmic Parent Function

  • Functions such as y = loga x or y = ln x act as inverses to exponential functions.
  • Essential for solving equations involving exponentials.

Rational Parent Function

  • Defined by f(x) = 1/x, resulting in a hyperbola.
  • Domain and range exclude the value 0, as it causes the function to be undefined.
  • Excluded values represent x-values that make f(x) undefined.

Exponential Parent Function

  • Formulated as y = ab^x where a and b are positive, and b ≠ 1.
  • Represents growth or decay processes, fundamental in various scientific disciplines.

Square Root Function

  • Parent function is defined as f(x) = √x, which yields non-negative outputs.
  • Graph starts at the origin (0,0) and opens to the right.

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