EOC Prep Staar Review 1

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

• Slope

• rate of change

• y intercept

• x intercept

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• 8
• 1

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

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

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

• 300
• 1.16
• .16
• x

Is this exponential growth or decay?

• Growth
• Decay

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

Is the graph exponential growth or exponential decay?

• Growth
• Decay

Identify the exponential equation that has an initial value of 5.

• y = 5(.25)^x

• y = 5x - 7

• y = 4x + 5

• y = 15(3)^x

Which graph is an exponential function?

• red

• blue

• green

• none

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