Martha is making a scarf for her sister each day she knits 1/6 of a scarf what fraction of the scarf will be complete after three days

Multiply 1/6 by 3 =1/2
In 3 days she would have completed 1/2 of the scarf.

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!