10/20 Exponential Functions

What is the domain of the function shown below?

• -2 < x < 5
• 0 < x < 12
• y > 0
• All Real Numbers

What is the range of this graph?

• y = 6
• (0, -4)
• y > -6
• y < -6

Whats the horizontal asymptote?

• (0,3)
• y=3
• y=-2
• y=2

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

On what intervals is the function decreasing?

• $\left(0,\ \infty\right)$

• $\left(-\ \infty,\ \infty\right)$

• $\left(-\infty,\ 0\right)$

• This function foes not decrease

On what intervals is the function increasing?

• $\left(0,\ \infty\right)$

• $\left(-\ \infty,\ \infty\right)$

• $\left(-\infty,\ 0\right)$

• This function foes not increasing

There are 5 original students that started at Texas Tech in 1923, each year the campus grew triple the size of the previous year. Is this exponential Growth or Decay?

• Neither

• Decay

• Growth

• Both

A 78 gram sample of Uranium loses half of its mass each year. Is this exponential Growth or Decay?

• Decay

• Growth

• Linear

• Quadratic

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

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO

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