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# Use the x-intercept method and the given graph to solve each equation or inequality. (Hint: Extend the concepts of Section mentioned for graphical solution of linear equations and inequalities.)$f(x)=\left(x-\frac{1}{2}\right)^2-\frac{81}{4}$(a) f(x)=0(b) $f(x) \geq 0$(c) $f(x) \leq 0$

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To solve equations or inequality, we use the $x$-intercept method. The given function is $f(x)=(x-\frac{1}{2})^2-\frac{81}{4}$, substitute the values into the given expression.

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