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Find the slope of f(x)=−5x^2+4x+6 at (2,−6).

 Jun 11, 2019
edited by demandingwaffle  Jun 11, 2019
 #1
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f(x)  = -5x^2 + 4x + 6

 

Take the derivative.....this will allow us to get the slope at any x

 

f ' (x)  =  -10x + 4

 

So

 

f ' (2)  =   -10(2) + 4  =  -16  =  slope at (2, -6)

 

 

cool cool angel

 Jun 11, 2019

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