Use the arrow diagram below to find 𝑋 by 𝑌.
We want to find a list of ordered pairs describing the relationship between 𝑋 and 𝑌. If we start here, where 𝑋 is four, when 𝑋 is four, 𝑌 can be nine. When 𝑋 is four, 𝑌 can also be three. And when 𝑋 is four, 𝑌 equals eight. When our 𝑋 coordinate’s four, we have three ordered pairs: four, nine; four, three; and four, eight.
We should follow the same process when our 𝑋 equals zero. When our 𝑋 is zero, we can have zero, nine or zero, three or zero, eight.
The set of all the relationships between 𝑋 and 𝑌 would look like this: four, nine; four, three; four, eight; zero, nine; zero, three; zero eight.