Math I #2 Review

The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.

• y=1400(1.09)^x

• y=1.09(1400)^x

• y=1400(.91)^x

• y=1.09^x

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth

• Decay

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth

• Decay

What is the domain of the graph shown?

• {-2, -1, 0, 1, 2, 3, 4}

• 2 ≤ y ≤ 4

• {2, 3, 4}

• -2 ≤ x ≤ 4

What is the domain of the graph?

• -3 ≤ x ≤ 3

• -2 ≤ x ≤ 10

• 3 ≤ x ≤ -3

• -3 ≤ x ≤ 10

What is the range of the graph?

• -2 < y < 10

• -2 ≤ y ≤ 10

• -3 < x < 3

• 
  -3≤ x ≤ 3

What is the range of the graph?

• 
  x≤0

• 
  y≤0

• y≥0

• All real numbers

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation

s(t) = –16t² + 64t + 80

What will be the object's maximum height?

• 144 ft

• 2 ft

• 64 ft

• 80 ft

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t² + 8t + 24

How long would it take you to hit the water?

• 1 second

• 1.5 seconds

• 8 seconds

• 1/4 second

A diver is standing on a platform above the pool. He jumps form the platform with an initial upward velocity of 8 ft/s. Use the formula: h(t) = −16 t² + 8t + 24

How high is the platform?

• 25 ft

• 8 ft

• .25 ft

• 24 ft