Chapter3: Polynomial Functions
Section3.1: Quadratic Functions And Models
Problem 79E
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Question
quadratic function in standard form
f (x)=-3x2 +12x-8
The vertex is:
The Axis of symetry is:
Expert Solution
Step 1
Consider the quadratic equation in standard form
Step 2
Standard form of a quadratic equation is 
.
Hence in the given Quadratic equation 
.
Axis of symmetry of the standard quadratic equation is
Axis of symmetry of equation (1)
x=2 is the axis of symmetry of 
.
Now for the vertex x co-ordinate will be same and y co-ordinate is the function value at x=2.
Hence the co-ordinate of the vertex
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