Vocabulary. Rational Number Most numbers are rational. It is a number whose decimal expansion eventually terminates or repeats. – What does it mean to.

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Presentation transcript:

Vocabulary

Rational Number Most numbers are rational. It is a number whose decimal expansion eventually terminates or repeats. – What does it mean to terminate?

Irrational Number

Timed Pair Share Can a number be rational and irrational? Why or why not

Square Root Just like multiplication and division are opposites, squaring a number and taking the square root of a number are opposites

Cube Root A square root is the opposite of a number squared, a cube root is the opposite of a number ____________

Checking for understanding. Are the following rational or irrational? Justify your answer … ……

Solve the square root and prove why it is correct

Solve the cube root and prove why it is correct

If you calculate the square root and the cube root of the same number, which solution will be bigger? Is this always true? How do you know? – Numbers to consider: 1 and 64