a.
To find: the maximum height of volley ball , where the height of the volleyball after
The maximum height is
Given information:
The given function is
Concept used:
The general function for the height of an object after launched is given by the function
Calculations:
The given function is
Based on the function, the graph is a parabola and open downwards. Thus from the vertex of the parabola can find out the maximum height.
Since the function is in the standard form of the parabola then
Then the maxium height is:
Thus the maximum height is
b.
To find: time in seconds when the volleyball reach the the maximum height, where the height of the volleyball after
At the time
Given information:
The given function is
Concept used:
The general function for the height of an object after launched is given by the function
Calculations:
The given function is
Based on the function, the graph is a parabola and open downwards. Thus from the vertex of the parabola can find out the maximum height.
Since the function is in the standard form of the parabola then
Then at the time
c.
To find: time in seconds when the volleyball hits the ground where the height of the volleyball after
At the time
Given information:
The given function is
Concept used:
The general function for the height of an object after launched is given by the function
Calculations:
The given function is
When the volleyball hits the ground then height of the volleyball reaches at zero.
Then at the time
Chapter 1 Solutions
Mcdougal Littell Algebra 2: Student Edition (c) 2004 2004
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