Question 514052
Consider the equation y= mx+b

Since the line bisects two Quadrants  It passes through the origin.

the y intercept is =0

so the equation will be y=x

but the line will be from left to right sloping downwards passing the IV quadrant.

so it will have negative slope

The equation will be y=-x

{{{graph(300,300,-10,10,-10,10,y=-x)}}}