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Find the domain over which the function y = x^2 +6x is mono tonic increasing. Please help

Sagot :

Answer:

  x > -3

Step-by-step explanation:

The function will be increasing where its derivative is positive.

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  y = x^2 +6x . . . . . given function

  y' = 2x +6 . . . . . . . derivative

The derivative is positive for ...

  2x +6 > 0

  2x > -6

  x > -3 . . . . . domain where the function is increasing