A Quadratic Function Is Given $f ( x ) = 2 x ^ { 2 } + 8 x + 9$

question 80

Essay

A quadratic function is given.
(a) Express the quadratic function in standard form.
(b) Find its vertex and its x- and y-intercept(s).
$f ( x ) = 2 x ^ { 2 } + 8 x + 9$

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