The position of an object at time t is given by s(t) = -8 - 9t. Find the instantaneous velocity at t = 1 by finding the derivative.

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anonymous · Answer

@mathmale

anonymous · Answer

@zepdrix @Kainui

anonymous · Answer

@SolomonZelman

solomonzelman · Answer

Ok, did you find the derivative, or that is the problem you are having?

solomonzelman · Answer

In general,

$\color{#000000}{    \displaystyle   \frac{d}{dx} (a)=0  }$

$\color{#000000}{    \displaystyle   \frac{d}{dx} (ax)=a  }$

anonymous · Answer

i need help on the whole question..

solomonzelman · Answer

Ok, do you know what the «derivative» really means conceptually?

solomonzelman · Answer

I mean, do you know that the derivative is the slope, or is it just something that you have once heard... ?

anonymous · Answer

okay so according to the lesson, i find the derivative by using the difference quotient

solomonzelman · Answer

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