The table shows the outputs y for different inputs x:

Input
(x) 2 4 6 8
Output
(y) 1 2 3 4

Part A: Do the data in this table represent a function? Justify your answer. (3 points)
Part B: Compare the data in the table with the relation f(x) = 3x – 10. Which relation has a greater value when x = 8? (2 points)
Part C: Using the relation in Part B, what is the value of x if f(x) = 80? (5 points)

Question

The table shows the outputs y for different inputs x:


Input
(x)	2	4	6	8
Output
(y)	1	2	3	4


Part A: Do the data in this table represent a function? Justify your answer. (3 points)
Part B: Compare the data in the table with the relation f(x) = 3x – 10. Which relation has a greater value when x = 8? (2 points)
Part C: Using the relation in Part B, what is the value of x if f(x) = 80? (5 points)

nnesha · Answer

PART A) every x values goes t0 ONLY  one y value 
A function is  when x values does not repeat , if there is same x value more than onc than relation is a not function
PART B) substitute x value and then solve for f(x)
in the table when x = 8 y =what ?
for example when x=6 y =3
PART C) substitute 80 for f(x) and then solve for x