What is done to exponents when you divide powers with the same base?

What is the equation of the line shown in this graph?

The equation y=mx+b is the slope-intercept form of the equation of a line. what is the equation solved for b? y-m=b y-mx=b y/mx=b y/m-x=b

How to write four times a number, minus 6,is equal to theee times the number+8 as an equqtion