The amount a spring will stretch varies directly with the amount of weight attached to the spring. if a spring stretches
2.1 inches when 80 pounds is attached, how far will it stretch when 40 pounds is attached?

The spring will stretch 1.05 inches.

Step-by-step explanation:

The amount a spring will stretch varies directly with the amount of weight attached to the spring.

Let the spring stretches x inches when 40 pound is attached.

we get the following relation;

=>

=>

x = 1.05 inches

Hence, the spring will stretch 1.05 inches.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

answer: none of these answers are correct only the second half is

step-by-step explanation: