Alight bulb consumes 3600 watts hours per day. how long does it take to consume 12600 watts hours?

3.5 
because 12600 divided by 3600 is 3.5

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!