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Help me so solve this

Help Me So Solve This class=

Sagot :

Answer:

Below.

Step-by-step explanation:

Finding the derivative:

y' = 10x + 12.

At x = -5 ,  y' = -50+12 = -38.

This means the function is decreasing at this point.

The second derivative is 10 (positive) so it is convex at this point.