Answer:
# 1 - slope = 1/2
# 2 - slope = -5/3
# 5 - slope = 5/3
Explanation:
going from where the point crosses at the y-axis it goes up 1 over 2 times
going from where the point crosses the y-axis it goes down 5 over 3
y_2 - y_1 / x_2 - x_1
5 - 0 = 5
4 - 1 = 3