Understanding Exponential Functions

What is the general form of an exponential function?

• y = a / b^x

• y = a - b^x

• y = a * b^x

• y = a + b^x

In the equation y = a * b^x, what does 'a' represent?

• The y-intercept

• The x-intercept

• The base

• The slope

How do you find the y-intercept from a table of values?

• Look for the y value when x is 1

• Look for the y value when x is 0

• Look for the x value when y is 0

• Look for the x value when y is 1

What is the role of 'b' in the exponential function y = a * b^x?

• It is the multiplier

• It is the exponent

• It is the slope

• It is the y-intercept

How do you determine the multiplier from a table of values?

• By multiplying the y values

• By dividing the y values

• By subtracting the y values

• By adding the y values

In the second example, what is the y-intercept when x is 0?

• 4

• 3

• 2

• 5

What is the multiplier in the second example with negative numbers?

• 3.5

• 1.5

• 2.5

• 0.5

In the third example, how do you find the y-intercept when there is no zero in the table?

• By adding a zero and using the multiplier

• By subtracting a zero and using the multiplier

• By dividing by zero

• By multiplying by zero

What is the y-intercept in the third example?

• 0.35

• 0.25

• 0.15

• 0.45

What is the multiplier in the third example?

• 3

• 2

• 4

• 5