Use technology to dertermine an appropriate model of the data. (0,1),(1,-2),(2,-3),(3,-2),(4,1)

The amount of energy it takes to lift a box might be a function of which of the following

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Tell whether the two rates form a proportion