Exponential Functions from Graphs Quiz

What is the general form of an exponential function?

• y = ax^2 + bx + c

• y = mx + c

• y = a * b^x

• y = a/x

In an exponential function, what does the 'a' represent?

• The x-intercept

• The common ratio

• The y-intercept

• The slope of the line

How do you find the common ratio 'b' from a graph?

• By adding two consecutive y-values

• By multiplying two consecutive y-values

• By subtracting two consecutive y-values

• By dividing two consecutive y-values

In Example 1, what is the growth rate of the function?

• 3

• 4

• 2

• 1

What is the equation derived in Example 1?

• y = 3 * 2^x

• y = 2 * 2^x

• y = 2 * 3^x

• y = 3 * 3^x

In Example 2, what is the common ratio 'b'?

• 1/4

• 4

• 2

• 1/2

What is the equation derived in Example 2?

• y = 2 * 1/2^x

• y = 2 * 4^x

• y = 4 * 1/2^x

• y = 4 * 2^x

In Example 3, what is the y-intercept of the function?

• 1

• 4

• 2

• 3

In Example 4, what is the common ratio 'b'?

• 1/2

• 1/3

• 1/4

• 2

What is the equation derived in Example 5?

• y = 5 * 3^x

• y = 5 * 1/2^x

• y = 5 * 5/2^x

• y = 5 * 2^x