Question

Please help me, I would gladly appreciate it. :)

The table shows the input and out put of a function.

Input: 3           Output: 5
          4                        7
          6                       11
         11                       21

(a) Explain what makes this set of data a function.

(b) What could cause this set of data to not be a function? Provide a specific example to support your statement and explain thoroughly.

(c) Write an equation, in function notation, that would fit the inputs and outputs in the table. Show your work that proves your equation is true for the given data.

Answer 1

A. Yes it is a function because all the x s are different

B If one of the x s repeated it would not be a function. Example: 4 8

C. Find slope. 7-5/4-3
Slope. 2/1. Or 2

Y=mx+b

7= 2(4)+b
7=8+b
B=-1

Y=2x-1