Asked by Trevor
If
12x − 52 ≤ f(x) ≤ x2 + 4x − 36
determine lim x→ 4 f(x) =
What theorem did you use to arrive at your answer?
12x − 52 ≤ f(x) ≤ x2 + 4x − 36
determine lim x→ 4 f(x) =
What theorem did you use to arrive at your answer?
Answers
Answered by
bobpursley
on the left, as x>4, 48-52
On the right, as x>4, 16+16-36
so
-4<=f(x)<=-4
so, squeezed from the right, squeezed from the left, lim f(x) x>4 = -4
On the right, as x>4, 16+16-36
so
-4<=f(x)<=-4
so, squeezed from the right, squeezed from the left, lim f(x) x>4 = -4
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