Question

I need a walkthrough on this, I have tonight to get it finished and I'm not sure where to begin..

A steel beam can be cut to different lengths for a project. Assuming the weight of a steel beam is proportional to its length, what information would you need to know to write an equation that represents this relationship?

[Following a lesson titled 'Solving Problems about Proportional Relationships']

Answer 1

We have been given that the weight of the steel beam is proportional to its length.

Therefore, w ∞ l

or, w = kl, where k is the constant of proportionality.

So, to know the relationship between the weight and the length, we need to know the constant of proportionality.