Exponential Functions and Growth Factors

The video tutorial explains exponential equations, focusing on the roles of the growth factor (b) and the initial condition (a). It demonstrates how to identify the growth factor by examining sequences and calculating the initial condition as the y-intercept when x is zero. An example of exponential growth is provided, illustrating the formula y = a * b^x, where a is the starting amount and b is the growth factor.

In the equation y = a * b^x, what role does the variable 'b' play?

• It is the growth or decay factor.

• It is the exponent.

• It is the initial condition.

• It is the constant term.

Tags

CCSS.HSF-IF.C.8B

What is the initial condition in the equation y = a * b^x?

• The value of b.

• The value of x.

• The value of y.

• The value of a.

Tags

CCSS.HSF.BF.A.2

How can you determine the growth factor in a sequence?

• By subtracting the terms.

• By adding the terms.

• By dividing a term by the previous term.

• By multiplying the terms.

Tags

CCSS.HSF.BF.A.2

If a sequence multiplies by 3 to get to the next term, what is the growth factor?

• 1

• 2

• 3

• 4

Tags

CCSS.HSF.LE.B.5

What is the y-intercept in the equation y = a * b^x when x is 0?

• The value of b.

• The value of a.

• The value of x.

• The value of y.

In the example, what is the initial condition when x is 0?

• 3

• 18

• 6

• 2

Tags

CCSS.HSF.LE.A.2

What is the complete exponential equation formed in the example?

• y = 6 * 3^x

• y = 2 * 3^x

• y = 3 * 2^x

• y = 18 * 2^x

Tags

CCSS.HSF.LE.A.2