Question

Medal and fan!

The table shows the outputs y for different inputs x:




Input
(x)
5 6 7 8


Output
(y)
2 5 8 11


Part A: Do the data in this table represent a function? Justify your answer.
Part B: Compare the data in the table with the relation f(x) = 2x + 13. Which relation has a greater value when x = 7?
Part C: Using the relation in Part B, what is the value of x if f(x) = 75?

Answer 1

Part A: Yes this is a function because each input has its own output
Part B: idu
Part C: try to work out part B because your answer for C needs B

Answer 2

Okay, thanks for giving me a head start!

Answer 3

can you help me on one of mine?

Answer 4

Sure, I can help on the ones I know.

Answer 5

Ok look at the one with "The graph of a function f(x)"

Answer 6

@HydrogenCyanide do you know what an "output" and an "input" are?

Answer 7

Maybe, sort of :/