Question

Determine wether the relation shown on the graph represents a one to one function for graph a b and c

Answer 1

in one-to-one function, each value of x has just one value of y and each value of y has just one value of x, so:

graph 3 is a one-to-one function

graph 4 when y=0 x can be 3 different values, so isn't a one to one function

graph 5 is a one to one function