SOLUTION: Determine the equation of the normal to the curve representing the function f (x) = 3sqrt (x), to the point where x = 9.
thank you
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Question 556283: Determine the equation of the normal to the curve representing the function f (x) = 3sqrt (x), to the point where x = 9.
thank you
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Determine the equation of the normal to the curve representing the function f (x) = 3sqrt (x), to the point where x = 9.
------------
f'(x) =
f'(9) = 1/2
f(9) = 9
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Slope m of normal = -2
----
y = mx + b
9 = -2*9 + b
b = 27
---
--> y = -2x + 27
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