Rachel multiplied each side of x ≥ 2 by 3. She wrote the result as 3x ≤ 6. Explain the error Rachel made.
1 answer:
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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