Question

In a table, how do I tell if it's linear, expodential, Inversly or dirrectly?

Answer 1

First, if this is varying directly or indirectly, the table would have to follow

y= kx
or
y=k/x
(k=constant)

Answer 2

k cannot be 0

Answer 3

There is no values of k that satisfy the first point.

k/1=0 -----> k=0
(But we said that k cannot be 0)
So, this is not varying directly

Answer 4

is that the same thing as mx as in:
y=mx+b

Answer 5

Similar proof for why it can't be direct variation.

Answer 6

Ok..... So how do I figure out the rest?

Answer 7

Linear form is as you said: y=mx+b

Answer 8

If this follows the linear form, all points have to be on that equation.

Answer 9

first point: m+b=0
second point: 2m+b=2
third point: 3m+b=4

Answer 10

is there a way to look at the table and immediatly know which one it is

Answer 11

and so on