Answer:
Step-by-step explanation:
A. I would suggest using desmos.com/calculator just put the equation and it will graph it for you. If you want to do it manually simply find x values like 1,2,3 and put it in the equation y=0.75x+0.25
The x-axis will be labeled as pounds and the y axis will labeled as length
B. the slope is 0.75 and the y-intercept is 0.25 because it's in the form of y=mx+b where m is the slope and b being the y-intercept
C. the spring will be 1.75 if there is 2 pounds on it because
y=0.75(2)+0.25
and if there is double that weight meaning 4 the length will be 3.25
y=0.75(4)+0.25
so no, it won't be double the length because in order for it to be double the length of 2 pounds it needs to be the length of 3.5
