Describe the graph with a mathematical function

Employer
[no-member:pro]Vyacheslav[/no-member:pro]Vyacheslav
Project parameters
Type of cooperationOne-time project
SectionOther / Miscellaneous
Prepaymentprepayment is possible
Payment methodsElectronic money
Acceptance of requestsclosed
Project description
It is necessary to choose a mathematical function so that its graph is as close as possible to this, which is in the figure.