Joan receives a $7 weekly allowance plus $6 for each hour she her father paint. ernie writes the equa on to represent the rela onship between the number of hours he his father with yard work and his weekly allowance. which statement best describes the graphs of their earnings for one week?

a) the lines have the same slope.

b) the lines are both proporonal.

c) the lines have the same x ‐intercept.

d) the lines have the same y ‐intercept.