HELPWILL GIVE BRAINLIEST IF CORRECT AND REASONABLE!! 1. A certain function fits the following description: As the value of x
increases by 1 each time, the value of y decreases by the square of x.
Is this function linear or nonlinear? Explain your reasoning.
2. What is the value of x that makes the relation {(2,4), (3, 6), (8, x)} a
function?
3. Write an arithmetic sequence whose common difference is -2.5

please see attachment :)