what is the explicit formula for this sequence -9,-3,3,9,15,... A) an=(-9)+(n-1)6 B)an=6+(n-1)(-9) C)an=(-9)+(n-1)(-6) D)an=21+(n-1)6

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

can you take a photo of the screen?

i can answer this if i have the answer choices