9.2A Notes - Writing Exponential Functions

Since we multiplied by 1/2 to fill in the y-values as we went down the table, how do you think we will fill out the y-values when we go in the opposite direction?

• Divide by 1/2

• Add 1/2

• Subtract 1/2

• Multiply by 1/2

Since y = 64 when x = 1, what will y equal when x = 0?

• 128

• 32

• 100

• 64

What is the y-intercept?

What is the value of the multiplier?

What do we multiply by to go from -2, to -4, to -8?

• 2

• -2

• 1/2

• -1/2

What is the function?