$$f ( x ) = \frac { 1 } { 5 } x ^ { 4 } \left( x ^ { 2 } - 5 \right)$$

question 19

Multiple Choice

$$f ( x ) = \frac { 1 } { 5 } x ^ { 4 } \left( x ^ { 2 } - 5 \right)$$

• A) 0 , multiplicity 4 , touches \(x\)-axis;
• \(\sqrt { 5 }\), multiplicity 1 , crosses \(x\)-axis;
• \(- \sqrt { 5 }\), multiplicity 1 , crosses \(x\)-axis
• B) 0 , multiplicity 4 , crosses \(x\)-axis
• C) 0 , multiplicity 4 , crosses \(x\)-axis;
• \(\sqrt { 5 }\), multiplicity 1 , touches \(x\)-axis;
• D) 0 , multiplicity 4 , touches \(x\)-axis
• \(- \sqrt { 5 }\), multiplicity 1 , touches \(x\)-axis

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