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Compare quadratic functions


How many roots do the functions have in common?
A coordinate plane. The x- and y-axes both scale by one. The graph is the function y equals g of x which is a parabola that opens up. The function has an x-intercept at negative two, zero, a y-intercept at zero, negative four, a minimum around one, negative four point five, and another x-intercept at four, zero.
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