Exponentials and Geometric Unit Test Review

Which equation best describes the graph? 

• y = 2^x + 4

• y = 2^x - 3

• y = 2^x - 4

• y = 2^x + 3 

What kind of shift happens with this function?

• 4 points up

• 4 points to the left

• 4 points to the right

• 4 points down

What is the asymptote of y = 2^x - 3

• y = 0

• y = -3

• x = 0

• x = -3

Solve 3³ = 3^{4x + 2}

• x = ¼

• x = -¼

• x = ½

• x = -½

• 1

• 2

• 3

• 4

Which the following graphs shows an exponential decay equation?

• 
• 
• 
• 

Find the common ratio: 4, -16, 64, -256, ...

• r = -4

• r = 2

• r = -2

• r = 4

What are the next 3 terms in the following geometric sequence:

512, 256, 128, ___, ___, ___, ...

• 1024, 2048, 4096

• 32, 8, 2

• 64, 32, 16

• 92, 66, 38

Given the sequence: 125, 25, 5, .... Write the rule a_n using the geometric sequence formula:

• a_n = (125)(1/5)^(n-1)

• a_n = 625(1/5)^(n-1)

• a_n = 625(5)^(n-1)

• a_n = 125 + 5n

Find a₁₂ in the sequence -1, -3, -9, -27, ...

• -177,147

• -19,683

• -59,049

• 118,098