Cayden has several screws on a scale, and the scale reads 80.955\,\text{g}80.955g80, point, 955, start text, g, end text. Cayden adds 111 more screw, and the scale reads 84.81\,\text{g}84.81g84, point, 81, start text, g, end text. What is the mass of the last screw Cayden adds?

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!

Need more information to solve it