Intro to Exponents

Intro to Exponents

What is it?

The larger number is called the base, the smaller number is the power.

• Exponential Form: uses the exponent

• Expanded form: repeated multiplication

• Standard form: do the multiplication

Multiple Choice

What is the base of the exponent?

• 3

• 4

Multiple Choice

What is the base of the exponent?

 $x^{12}$  

• x

• 12

Multiple Choice

What is the power of the exponent?

 $y^3$  

• y

• 3

Multiple Choice

What is the power of the exponent?

 $8^x$  

• 8

• x

What does it mean?

An exponent signifies repeated multiplication.

The base is the number that repeats.

The power tells you how many times it's multiplied.

Multiple Choice

Write

 $5^3$  in expanded form. 

• 3*3*3

• 5*5*5

• 3*5

• 3*3*3*3*3

Multiple Choice

Write

 $x^4$  in expanded form. 

• 4*4*4*4

• 4*x

• x*x*x*x

• x*x*x

Multiple Choice

Write

 $3y^2$  in expanded form. 

• 3y*3y

• 3*y*y

• 3*y

• y*y

Multiple Choice

Write

 $5x^3y^2$  in expanded form. 

• 5*x*3*y*2

• x*x*x*y*y

• 5*x*y

• 5*x*x*x*y*y

Writing using exponents.

If you see a number being multiplied repeatedly you can write it using exponents.

Multiple Choice

Write 5*x*x*x in exponential form.

• $5x^3$

• $5x^2$

• $5x$

• $x^3$

Multiple Choice

Write 8*x*x*y*y*y*y in exponential form.

• $8xy$

• $8x^3y^3$

• $8x^2y^4$

• $8xy^6$

Multiple Choice

Write -3*y*y*x*y*z in exponential form.

• $-3xy^3z$

• $-3xyz$

• $-3x^2y^2z^2$

• $-3xyz^5$

Multiple Choice

Write 5*z*z*z*y*y*x in exponential form.

• $5z^3xy$

• $5xy^2z$

• $5zyx^3$

• $5xy^2z^3$