I need to explain how to write a function with a zero of 0.5 Work backwards from the solution: x = 0.5 {the solution x - 0.5 = 0 {subtracted 0.5 from each side} (x - 0.5)(x - 0.5) = 0 {wrote as two binomials multiplied equal to zero} x(x) + x(-0.5) - 0.5(x) - 0.5(-0.5)= 0 {used foil method} x² - 0.5x - 0.5x + 0.25 = 0 {multiplied through} x² - x + 0.25 = 0 {combined like terms} ![]() A zero of a quadratic function is where the graph meets the x-axis. - Algebra House
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