You've already gathered data to measure the relationship between reading skills and extroversion. now, you look at the data to determine if reading skills and extroversion have a negative or positive correlation. which step of the scientific process are you engaged in?

trig 15.3 cos

a and b sometimes have a positive value

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 .