7.5 Review

What is the equation that best represents the graph?

• y=2^y
• y=2^x
• y=2^-x
• y=x²

Is the pictured graph exponential growth, exponential decay, or linear or none?

• Exponential Growth

• Exponential Decay

• Linear

• None

Given y=3^x determine the y-intercept 

• (0,1)
• (0,3)
• No Y-intercept
• y=1

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x
• y = 50x - 4
• y = (2)^x + 50
• y = 50(1.4)^x

What function is present? 

• Absolute Value
• Exponential Decay
• Linear Equation
• Exponential Growth

• 96

• 7776

• 30

• Decay

• Growth

• Decay

• Growth

What is the domain and range of the function y=2^x ? Use the graph to help!

•  Domain: All real #'s

  Range: y>0

•  Domain: All real #'s Range: y>1

•  Domain: All real #'s

  Range: y> -1

•  Domain: All real #'s

  Range: y>4

Which graph is an exponential function?

• red

• blue

• green

• none