Is the displayed graph the graph of a polynomial function? x y A coordinate plane has a horizontal x-axis and a vertical y-axis that intersect at the graph's center. Assume that the top right corner of the plane has coordinates (10, 10). 3 curves appear. From left to right, the first curve rises at an increasing rate comma passing nearly horizontally just above left parenthesis negative 10 comma 0 right parenthesis and nearly vertically just to the left of left parenthesis negative 2 comma 10 right parenthesis . From left to right comma the second curve rises at a decreasing rate comma passing nearly vertically just to right of left parenthesis negative 2 comma negative 10 right parenthesis and through left parenthesis 0 comma negative minus 1 right parenthesis comma and then symmetrically falls at an increasing rate comma passing nearly vertically just to the left of left parenthesis 2 comma negative 10 right parenthesis . From left to right comma the third curve falls at a decreasing rate comma passing nearly vertically just to the right of left parenthesis 2 comma 10 right parenthesis and nearly horizontally just above left parenthesis 10 comma 0 right parenthesis . All coordinates are approximate