Who was Muhammad ibn Musa al-Khwarizmi ?​

Muḥammad ibn Mūsā al-Khwārizmī, or al-Khwarizmi and formerly Latinized as Algorithmi, was a Persian polymath who produced vastly influential works in mathematics, astronomy, and geography. 

Al-Khwārizmī is famous for his mathematical works, which introduced Hindu-Arabic numerals and algebra to European mathematicians. In fact, the words algorithm and algebra come from his name and the title of one of his works, respectively.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.