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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
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