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Which of the functions is represented by the graph

O f(x)=2x²+3
O f(x) = -x² + 3
O f(x) =1/2x² + 3
O f(x) = -1/2x +3


Pls help

Which of the functions is represented by the graph O f(x)=2x²+3 O f(x) = -x² + 3 O-example-1

1 Answer

4 votes

Answer:


f(x)=-2x^2+3

Explanation:

The vertex is at
(0,3), so the equation is of the form
f(x)=ax^2+3.

Using the point
(1,1) to solve for
a,


1=a+3 \implies a=-2 \\ \\ \therefore f(x)=-2x^2+3

User Leobrl
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