Question

first number line second cartesian plane​

Answer 1

Answer:

John Wallis

The English mathematician, John Wallis (1616 - 1703) is credited with giving some meaning to negative numbers by inventing the number line, and in the early 18th century a controversy ensued between Leibniz, Johan Bernoulli, Euler and d'Alembert about whether \log (-x) was the same as Log(x).