a function is a one-to-one and many-to one relation
A formula or graph are two ways to describe a math function. How a math function is described depends on the domain of the function or the complexity of the function.
That sounds really comlicated.
A piecewise defined function is a function which is defined symbolically using two or more formulas
It is the function for which all the elements of the range of the function corresponds to exactly one element of the domain.
describe the notch and its function in the story
describe the structure of a fruit
describe the general business travel
describe alternative ways of organising the information systems function in a business
Describe the normal function of the hematic system
a function is a one-to-one and many-to one relation
it is weak
Photosynthesis
to describe an action
to describe an action
Myocardium
The function is to transport air to the rest of the body.