A Point Is Moving Along the Graph of the Function $y = 9 x ^ { 2 } + 4$

question 21

Multiple Choice

A point is moving along the graph of the function $y = 9 x ^ { 2 } + 4$ such that $\frac { d x } { d t } = 3$ centimeters per second. Find dy/dt for the given values of x. (a) $x = 4~~~~~~~~~~~~~~~~~~~~~~~~~~$ (b) $x = 7$

• A) \(\frac { d y } { d t } = 4\) \(\frac { d y } { d t } = 378\)
• B) \(\frac { d y } { d t } = 216\) \(\frac { d y } { d t } = 378\)
• C) \(\frac { d y } { d t } = 378\) \(\frac { d y } { d t } = 216\)
• D) \(\frac { d y } { d t } = 7\) \(\frac { d y } { d t } = - 216\)
• E) \(\frac { d y } { d t } = 7\) \(\frac { d y } { d t } = 378\)

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Legal responsibility attributed to an individual or entity for the actions of another, usually in an employer-employee relationship.

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Unfair treatment of individuals in employment or other areas based on their age, particularly against older persons.