The scatter plot shows the length of a spring when a stretch force is applied. The equation represents the linear model for this data.

y = 0.73x + 1

What does the number 1 in the equation mean in this context?

The spring has a length of 1 inch when no force is applied.

The spring will stretch 1 inch for every pound of force applied.

The spring has no stretch when a force of 1 pound is applied.

The spring stretches a distance of 1 inch when a force of 0.73 pound is applied.

Exercise: counting committees 0.0/2.0 puntos (calificable) we start with a pool of n people. a chaired committee consists of k≥1 members, out of whom one member is designated as the chairperson. the expression k(nk) can be interpreted as the number of possible chaired committees with k members. this is because we have (nk) choices for the k members, and once the members are chosen, there are then k choices for the chairperson. thus, c=∑k=1nk(nk) is the total number of possible chaired committees of any size. find the value of c (as a function of n ) by thinking about a different way of forming a chaired committee: first choose the chairperson, then choose the other members of the committee. the answer is of the form c=(α+nβ)2γn+δ. what are the values of α , β , γ , and δ ?