Where is the curve x = ln t, y = e^t concave upward? A) at all points on the curve B) at all points corresponding to values of t satisfying t 1 C) at all points corresponding to values of t satisfying 0

Question

Where is the curve x = ln t, y = e^t concave upward? A) at all points on the curve B) at all points corresponding to values of t satisfying t > 1 C) at all points corresponding to values of t satisfying 0 < t < 1 D) at all points corresponding to values of t satisfying 0 < t $\le$ 1 E) nowhere

Quizplus · Accepted Answer

The curve is concave upward at all points because the second derivative of y with respect to x is positive for all t.

Where Is the Curve X = Ln T, Y = ≤\le≤

Where Is the Curve X = Ln T, Y = $\le$