A function is a relation where each input value is assigned to
one output value.
The
of a function is the set of all input values, or x-values, for which the function is defined.
The
of a function is the set of all output values, or y-values, for which the function is defined.
To write the equation y = ax + b in function notation, substitute
for y.
To write the equation y = ax + b in function notation, substitute "f(x)" for y. So the function notation for this equation would be:
f(x) = ax + b