I think you mean to say

. If

is in the third quadrant, then

and

. Recall that

We expect

to be negative, so we take the negative root. We end up with

We also know to expect

, so

By definition, we have

and so
87/62 = 1 and 25/62 (simplest form)
Answer:
7) -2 and 3
8) -2 and 3
9) Discrete
Step-by-step explanation:
Ratio problem
1 cm = 120 km
------- = --------
x 463
120x = 463
x = 23.15 = 23.2