Quadratic Function Analysis

A poster has the dimensions 3x inches by x inches. It has a frame that is 3 inches thick. Which quadratic function models the area of the poster and the frame?

The height of an item falling can be modeled by h_t = -16t² + h_o . Where h_o is the initial height in feet, and h_t is the height in feet at time t in seconds. If I drop a bowling ball at a height of 13.1 feet, how long will it take the item to hit the ground?

• 0.1 seconds

• 1.9 seconds

• 0.90 seconds

• 0.81 seconds

A frog is sitting on the ground when he is scared by a big dog. His movement is modeled by the equation h = -6t² + 6t where h is the frog's height at any given time, t . How many seconds until the frog is back on the ground?

• 0.5 seconds

• 1 second

• 1.5 seconds

• 2 seconds

If each mark on the x-axis represents one second, when did the object reach the ground?

• 2.5 seconds

• 6 seconds

• 5.5 seconds

• 5 seconds

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) = _t² + _t + _.

What number go into the third blank?

• 2

• 80

• -16

• 64

If the width of the hutch is 7 feet, how big will the area inside of the hutch be?

x is the width of the rectangular area in feet

y is the total ground area of enclosure in square feet.

What is the domain?

What is the range?

Describe the interval behavior.

What is the range?