Part A Suppose that you need to get a heavy couch into the bed of a pickup truck. (Figure 2) You know the bed of the truck is at a
height of 1.00 m and you need a ramp that makes an angle of 40° with the ground if you are to be able to push the couch.
Use the sine function to determine how long of a board you need to use to make a ramp that just reaches the 1.00-m high
truck bed at a 40° angle to the ground
Express your answer in meters to three significant figures.

neither accurate nor precise.

answer; how far out of place which the object finished relative to the starting location;

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .