Yes 2 1/2 is a rational #
Answer:
Step-by-step explanation:
slope = y₂-y₁/x₂-x₁

1-7 = -6. Here if two numbers have different sign, then subtract and put the bigger numbers sign for the result.
Answer:
10+10= 20/10= 2-0= 2+1000000000= 1000000002
Step-by-step explanation: