Explore function basics, input-output relationships, and graphing linear functions.
Evaluate functions by substituting input values!
Build a function table from a function rule!
A function is a relationship where each input (x) has exactly one output (f(x) or y).
• Input (x): The value you put into the function
• Output (f(x) or y): The result you get out
• Domain: All possible input values
• Range: All possible output values
f(x) = 2x + 3
This means: multiply input by 2, then add 3
If x = 4, then f(4) = 2(4) + 3 = 11