Domain and range of y=-x^2+2

Domain is (−∞,∞),{x|x∈R}

Range is (−∞,2],{y|y≤2}

Step-by-step explanation:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values. Use graph (plots).

Step-by-step explanation:

The relationship given:

See the graph attached. It includes the endpoints as described below, considering h = 48 as lowest and h = 252 as highest points of the function.

The t- coordinates of the respective h- points are:

and

The domain:

The range: