anonymous
  • anonymous
Let f(x)=(3 x+ 7)/(4) At x = -4, the derivative of f =
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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precal
  • precal
use the quotient rule
anonymous
  • anonymous
what is the qoutient rule?
Mertsj
  • Mertsj
Don't need the quotient rule because it is 1/4(3x+7)

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Mertsj
  • Mertsj
Distribute the 1/4. You will get 3/4x+7/4
Mertsj
  • Mertsj
Can you find that derivative?
precal
  • precal
sorry listen to Mertsj
anonymous
  • anonymous
isnt there already a derivative shown
Mertsj
  • Mertsj
Does that say f'(x) ?
anonymous
  • anonymous
no f(x)
Mertsj
  • Mertsj
Well then, it isn't the derivative.
anonymous
  • anonymous
so how do I find the deriv after distributing 1/4?
Mertsj
  • Mertsj
Can you find the derivative of f(x) = x^2?
anonymous
  • anonymous
f(x)= -4?
Mertsj
  • Mertsj
|dw:1328142860469:dw|
Mertsj
  • Mertsj
Do you understand that?
anonymous
  • anonymous
im stuck after y=3/4x+7/4
Mertsj
  • Mertsj
|dw:1328142995837:dw|
anonymous
  • anonymous
3/4 is the deriv of f?
Mertsj
  • Mertsj
At x = -4, the value of the derivative is 3/4 because the derivative is always 3/4
Mertsj
  • Mertsj
Yes. The derivative of a linear function is a constant because the derivative is the slope function and the slope of a line is a constant.
anonymous
  • anonymous
ok thanks
precal
  • precal
Mertsj can you please look at my problems about derivatives? Thanks

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