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A hovercraft takes off from a platform. Its height (in meters), x seconds after takeoff, is modeled by

 

\(h(x)=-(x-11)(x+3)\)

 

What is the height of the hovercraft at the time of takeoff?

 Apr 13, 2018

Best Answer 

 #2
avatar+7354 
+3

height of hovercraft  x  seconds after takeoff  =  h(x)  =  -(x - 11)(x + 3)

 

We want to know the height of the hovercraft  0  seconds after takeoff.

 

height of hovercraft  0  seconds after takeoff  =  h(0)  =  -(0 - 11)(0 + 3)  =  -(-11)(3)  =  33

 

So...

 

The height of the hovercraft at the time of takeoff is  33  meters.

 Apr 13, 2018
 #1
avatar+1107 
+2

uhh bump i still need help.

 Apr 13, 2018
 #2
avatar+7354 
+3
Best Answer

height of hovercraft  x  seconds after takeoff  =  h(x)  =  -(x - 11)(x + 3)

 

We want to know the height of the hovercraft  0  seconds after takeoff.

 

height of hovercraft  0  seconds after takeoff  =  h(0)  =  -(0 - 11)(0 + 3)  =  -(-11)(3)  =  33

 

So...

 

The height of the hovercraft at the time of takeoff is  33  meters.

hectictar Apr 13, 2018

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