Question 661678
2 points are all you need to determine a straight line
This is the formula:
{{{ ( y - 0 ) / ( x - 0 ) = ( 4 - 0 ) / ( 4 - 0 ) }}}
{{{ y/x = 4/4 }}}
{{{ y/x = 1 }}}
{{{ y = x }}}
This is a line with slope = +1 and y-intercept at the origin
The formula is just
( change in y ) / ( change in x ) = ( change in y ) / ( change in x )