Explanation: To find the “b” of this equation you simply see where the line hits the y- intercept , in this case it will be 0. And to find the “m” of this equation you find the rise over run . Hope that helps.
The selection process in the given question can be referred to as combination, since 4 pairs of jeans are to be selected from the 7 pairs. There is no specific pattern of selecting the 4 pairs.
Thus, the selection can be done in 7 ways.
7 =
=
=
= 7 x 5
= 35
Therefore, 4 pairs of jeans can be selected from 7 pairs in 35 ways.