Z=1 eventually you get 15 divided by 15 giving you Z=1 it’s a long equation
Are you looking for where they cross ? if so its (-1,2)

let's plug in the value of y :
Answer:
1/3 or 33.333333333%
Step-by-step explanation:
Two 9's
Six number possible
2/6= 1/3
Probability:
1/3 or 33.33333333%