Which term refers to a universal fact sometimes based on mathematical equations

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

Abody covers a semicircle of radius 7cm in 5s .find its linear speed