Question 688297
Here's the plot of {{{ y = x^3 - 5 }}}
{{{ graph( 400, 400, -4, 4, -10, 3, x^3 - 5 ) }}}
I would say it is a 1 to 1 function, because
there is 1 value of x for each value of y.
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Here is a classic case of many values of x for
each value of y. It is {{{ y = sin(x) }}}
{{{ graph( 400, 400, -10, 10, -2, 2, sin(x) ) }}} 
It is not a 1 to 1 function