Differentiating once, we have

Differentiating again,


as needed.
Its basically 7 see there is nothing but the number 7 which means as to an expression its 7.
If you think about it, you have your answer in your question.
Convert 2/4 to 1/2 which in decimal form, is .5.
You’re final answer is -2.3,-2 2/4,-2.6.
I hope this helps!
<span>C) 1/30 i think ok i am 12</span>