Question

he length of the stretch (in millimeters) of a spring is proportional to the weight (in grams) attached to the end of the spring as shown in the graph. a) Label the points given (give the ordered pair). b) What is the unit rate? c) Plot and label the point whose ordered pair represents the unit rate. d) What are the coordinates of that point? e) Explain what the point that you plotted means in this context of this problem. f) Write an equation for this graph. ​

Answer 1

a) Label the points given (give the ordered pair).

• (2, 10), (3, 15), (7, 35)

b) What is the unit rate?

• 10/2 = 15/3 = 35/7 = 5

c) Plot and label the point whose ordered pair represents the unit rate.

• Plot the point at 1 unit right, 5 units up

d) What are the coordinates of that point?

• (1, 5)

e) Explain what the point that you plotted means in this context of this problem.

• 1 gram of weight is proportional to 5 mm stretch

f) Write an equation for this graph. ​

• y = 5x