Relationship Between Two Variables
 

Operations with functions for KS4



Functions can be added, subtracted, multiplied and divided. Let's review the operations.


Sum and difference of two functions



The sum or difference of two functions and defined on an interval is a function defined on the same interval and for each in the domain:




Product of two functions



The product of two functions and defined on an interval is a function defined on the same interval and for each in the domain:




Quotient of two functions



The quotient of the two functions and defined on some interval is the function defined on the same interval , except for those for which . For each in the domain:


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material editor: Sulaiman Awwal Akinwunmi