URGENT

Let f(0)=20 and f(4)=40

A. Find the equation if f(x) is linear.

B. Find the equation of the line if f(x) is exponential.

C. Use your models above to predict f(12) both linearly and exponentially.

i think it is 70

step-by-step explanation:

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:

answer: 1475

step-by-step explanation:

becuase you have to know what they are asking you

answer is  

c.

36

step-by-step explanation: