Warm up! At the bottom of your sheet, sketch a cube root function and a square root function.

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Presentation transcript:

Warm up! At the bottom of your sheet, sketch a cube root function and a square root function

Graphing Square Root and Cube Root Functions

Don’t freak out… YOU learned the basics to graphing last chapter This is just reinforcement!

Where we see ‘em…

Cube root and square root

Parent Square Root

X/Y table X ValueY Value

Parent Cube Root

X/Y table X ValueY Value

Translations

Translations

You tell me… What would placing a negative sign in front of the radical do? What would placing a number like 2 in front of the radical do?

Practice

Square Roots and nth roots When c≥0, the square root of c is the non negative solution of the equation x 2 =c Cube roots, fourth roots, and higher roots are defined as solutions of the equation x n =c These equations can be solve graphically by finding the x coordinate of the intersection points of y=x n and y=c

Solutions to nth roots

Review…

Evaluate in your calculator 40 1/ /111 Watch your parentheses

Rational Exponents

Simplify

Homework: Page 334, Section 5.1 # 10, 13, 14, 15