What is the recursive formula for the sequence 4, 16, 36, 64,

Unrecursively, that's

A quadratic will have a linear first difference:

So we get

f(1) = 4

f(n+1) = f(n) + 8n + 4

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:

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.