Using the critical point concept, it is found that a = -3 and b = 7.
<h3>What are the critical points of a function?</h3>
- The critical points of a function are the values of x for which:

In this problem, the function is:

Hence, the derivative is:

Then:







Since the critical point is at x = 2, we have that:




Then:

Critical point at (2,3) means that when
, then:



You can learn more about the critical point concept at brainly.com/question/2256078
It's 11, 13, 17, 19, 23 and 29.
The answer is 25. To check 10/.4 is 25 and 0.4 equals to 2/5
Answer: I can't see image
Step-by-step explanation: