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It's clear sailing right here. So the curve has
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two phones functions associated with it, which is plus
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and minus X to the three house power one has
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a graph above the X axis, and the other
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one's below the X axis. We know that why
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it's bigger than zero at the point. One comma
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one. So we're gonna take positive X three hands
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. We have our slope, which is equal to
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D over D, acts for X 23 house power
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for access equal to one, and this is equal
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to three halves and the tangent line equation becomes lie
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. Minus one is equal to three house X minus
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one, which is equal to three house acts minus
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on her. We have our slope of our normal
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line, which is negative 2/3 since they have to
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multiply to become negative one. And it's why minus
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one is equal to 2/3 negative 2/3 X minus one
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, which is equal to negative 2/3 acts plus 5/3