Q. Leth(x)={ex+2(x+2)e for x≤−2 for x>−2Is h continuous at x=−2 ?Choose 1 answer:(A) Yes(B) No
Check Definition: To determine if h(x) is continuous at x=−2, we need to check if the following three conditions are met:1. h(x) is defined at x=−2.2. The limit of h(x) as x approaches −2 from the left is equal to the limit of h(x) as x approaches −2 from the right.3. The limit of h(x) as x approaches −2 is equal to the value of h(x) at x=−2.
Find Left Limit: First, let's check if h(x) is defined at x=−2. Since h(x) has a piece for x≤−2, which is e(x+2), we can substitute x=−2 into this piece to find h(−2). h(−2)=e(−2+2)=e0=1. So, h(x) is defined at x=−2.
Find Right Limit: Next, we need to find the limit of h(x) as x approaches −2 from the left. Since the function for x≤−2 is e(x+2), the limit as x approaches −2 from the left is also e0=1.
Compare Limits: Now, we need to find the limit of h(x) as x approaches −2 from the right. The function for x > -2 is (x+2)e. As x approaches −2 from the right, the expression (x+2)e approaches 0e. Since any positive number to the power of e is positive, and 0e is x1, the limit as x approaches −2 from the right is x1.
Conclusion: Since the limit of h(x) as x approaches −2 from the left is 1, and the limit as x approaches −2 from the right is 0, the two limits are not equal. Therefore, h(x) is not continuous at x=−2 because the limits from the left and right do not match.