Maximum of Quadratic

Algebra Level 1

Consider the quadratic function

y=ax2+bx+c,y=ax^2+bx+c,

where aa, bb and cc are constants. If yy has a maximum value of 5454, and the graph of yy passes through the two points (2,0)(-2, 0) and (4,0),(4, 0), what is the value of a+b+c?a+b+c?

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