Nadia is placing different weights on a spring and measuring the length of the stretched spring. she finds that for a 100 gram weight the length of the stretched spring is 20 cm and for a 300 gram weight the length of the stretched spring is 25 cm. write an equation in point slope form that describes this situation. what is the unstretched length of the spring?

Step-by-step explanation:

Slope formula:

100 grams would be an x(1) coordinate

20 cm would be a y(2) coordinate

300 grams would be an x(2) coordinate

20 cm would be a y(2) coordinate

They would be written like this: (100,20), (300,20)

You would use the slope formula to find m

Slop-point formula: y-y(1)=m(x-x(1))

When slope is solved, you get 1/40

When solved for slope-point, y - 20 = 1/40 (x-100)

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!