During a football workout, two linemen are pushing the coach on the sled. The combined mass of the sled and the coach is 300. kg. The force of friction between the sled and the grass is 2400 N. The sled accelerates at a rate of 0.580 m/s2. Determine the force applied to the sled by the lineman.

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 .

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank