In Exercises 21 and 22, consider the three given lines. Line a: through the point (2,0) with a y-intercept of (0, 1)
Line b: through the point (2,0) with a y-intercept of (0,5)
Line c: through the point (2,0) with a y-intercept of (0,3)

21. Which line is most steep?
22. Which line is least steep?