https://www.youtube.com/watch?v=ZkEHA-wixDw

Input-Output Tables

Functions in real life

Functions in math

Example of a function: y = x + 3

x y157

y = x + 3

fill out table

y = x + 3

y = x + 3

Your turn:

x y121415

y = x - 4

Your turn:

x y12

3

y = -3x

What about this one: y = 2x + 3

x y123

A little more difficult: y = - 32x

x y61014

Can you do it backwards?

I'll give you the table, you find the function

x y5 17 310 6

x y2 1003 1504 200