Use the given function to complete parts a) through e) below. \( r(x)=-3(x-3)^{2}\left(x^{2}-4\right) \) The \( x \)-intercept(s) is/are \( -2,2,3 \). (Type an integer or a decimal. Use a comma to separate answers as needed. At which zero(s) does the graph of the function cross the \( x \)-axis? Select the correct choice below and, if necossary, fill in the answer box to complete your choice. A. The graph crosses the \( x \)-axis at the zero(s) (Type an integer or a decimal. Use a comma to separate answers as needed) B. There are no zeros at which the graph crosses the \( x \)-axis. At which zero(s) does the graph of the function touch the \( x \)-axis and turn around? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The graph touches the \( x \)-axis and turns around at the zero(s) (Type an integer or a decimal. Use a comma to separate answers as needed. B. There are no zeros at which the graph touches the \( x \)-axis and tums around.
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To determine where the graph of \( r(x) = -3(x-3)^{2}(x^{2}-4) \) intersects or touches the \( x \)-axis, we can analyze the \( x \)-intercepts and the behavior at those intercepts. The \( x \)-intercepts are given as \( -2, 2, 3 \). For a graph to cross the \( x \)-axis at a zero, that zero must be of odd multiplicity. In this case, both \( -2 \) and \( 2 \) are part of the quadratic factor \( (x^{2}-4) \) and thus have odd multiplicities. The zero \( x = 3 \) is part of the factor \( (x-3)^{2} \) and has even multiplicity, so it touches the axis and turns around. 1. A. The graph crosses the \( x \)-axis at the zero(s) \( -2, 2 \). 2. A. The graph touches the \( x \)-axis and turns around at the zero(s) \( 3 \).