DOCTORAFLOGO DOCTORAFLOGO Math Answered Identify the polynomial functions from the given set of functions. Give your reasons1. f(x) = 2 = x + 3x² - 4x² To find x-intercept /zero substitute f(x) = 02. P(x) = 75x7 + 2x3 - x3. y = (3x2 + 2x)4. f(x) = 5x + 35. y=-4x2 + 2x-1