SOLUTION: Let f (x) ={{{ - x^2 + 4x - 7 }}}
(a) Find the coordinates of the vertex.
(x, y) = ___
(b) The [Either max/min] value of f is
f ( __ ) = __
(c) Find the domain an
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Question 906441: Let f (x) =
(a) Find the coordinates of the vertex.
(x, y) = ___
(b) The [Either max/min] value of f is
f ( __ ) = __
(c) Find the domain and range of f
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
Let ...as you can see, , , and
(a) Find the coordinates of the vertex.
is x-coordinate of the
so,
and, to find the y-coordinate that goes with it,use that value for x in our equation
...solve for which is equal to
so, the coordinates of the vertex are:( ,)
(b) The [Either max/min] value of f is
the max or min of a parabola is always the vertex
(c) Find the domain and range of f
the domain: (all real numbers)
the range: { element : }
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