Question 1 5 pts Suppose f is increasing on the interval [0,, b] and we want to estimate the area under the curve on this interval. 1. If f is concave down on this interval, using left endpoints would give '. [Select] V]. 2. If f is concave down on this interval, using right endpoints would give ' [Select] V'. 3. If f is concave up on this interval, using left endpoints would give '. [Select] v-'_ 4. If f is concave up on this interval, using right endpoints would give '. [Select] v-'_ If f is not known to be increasing or decreasing on [0,, b], which of the above statements must be true? [53'3\"] V [ Select] 1 and 2 3 and 4 1 and 3 2 and 4 All 4 statements Que - None of them. 1 pts Suppose f is increasing on the interval [a, b] and we want to estimate the area under the curve on this interval. 1. If f is concave down on this interval, using left endpoints would give [ Select ] [ Select 2. an overestimation. erval, using right endpoints would give an underestimation. an exact answer. 3. If f is concave up on this interval, using left endpoints would give [ Select ] 4. If f is concave up on this interval, using right endpoints would give [ Select ] If f is not known to be increasing or decreasing on la, b), which of the above statements must be true? [ Select ]Question 2 1 pts Suppose y = v(t) represents the velocity of an object on an interval [a, b]. n Using the Riemann sum approximation, lv(ti) |At , to approximate the area under the curve i=1 y = \\u(t) estimates which of the following? O the average velocity on [a, b]. O the total distance traveled by the object over the interval [a, b]. O a +b the instantaneous velocity at t = 2 O the acceleration function y = a(t) .Question 3 1 pts Suppose we want to find the area under the curve y = f( ) (pictured below) on the interval [0, 4] using a Riemann sum with 4 rectangles. 5 4 3 2 2 3 4 y = f(x) Which of the following provides the most accurate approximation of the area under the curve on the given interval? O right endpoints O left endpoints O midpointsSuppose we want to find the area under the curve y = f( ) (pictured below) on the interval [0, 4] using a Riemann sum with 4 rectangles. 5 4 3 2 1 5 y = f(x) Which of the following provides the most accurate approximation of the area under the curve on the given interval? O right endpoints O left endpoints O midpoints