I don’t know how to solve these correctly can someone help?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

2x minus y equals 6, x plus y equals negative 3

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c