Budget Constraint Homework Problem

Hi all, I am have trouble comprehending this homework problem.

I have already drawn 1a, i just need help with understanding 1b, and 1c

1. In a filed of labor economics interest is paid to an individuals decision regarding the balance of labor and leisure at different levels of income. In two-good space, this is typically demonstrated with income (I) on the Y-axis and hours of leisure (L) on the x-axis. Assuming a 24 hour day and that we are interested in per day income, answer the following questions:

a) Using a carefully drawn and labeled graph, show the three different "budget" constraints implied by the following hourly wages: $5/hr, $10/hr, and $15/hr, and label them I1, I2, and I3, respectively.

b) what is the economic interpretation of the slope of the "budget" constraint?

c) Give an interpretation of movements to the right (away from the origin) and to the left (towards the origin) on the L (x) axis (hint: can we use this axis to say any thing about hours of labor supplied?).