Let v(t.) = 2t - 6 be the velocity of an object moving along a straight line measured in feet per second. Then . The displacement of the object from t = 0 to 4 seconds is [ Select ] feet. . The distance traveled by the object from t = 0 to 4 seconds is [ Select ] V feet.Take the function f(a) = Vx -1. Consider the left-endpoint approximation for the area under the graph of f over the interval 1, 4 using three rectangles of equal width, and the right-endpoint approximation for the area under the graph of f over the interval 1, 4 using three rectangles of equal width. . For either approximation, the width of each rectangle is [ Select ] . Which approximation will be larger in this case [ Select ] left-endpoint approximation right-endpoint approximationConsider the integral 20 "a sec x do. To solve this using methods discussed in this class, let u = [ Select ] V and rewrite the integral as [ Select ] V where 1. u20 (1 + 12) 10 du 2 20 (1 - 12) 10 du III. (1 + 22) 20 du IV. 22 (u2 - 1) 10 du