Answer:
the frst one s the answer
Step-by-step explanation:
t s a functon becuase all of the other ones have more than one pont on the lne and that one doesn't.
The first one!
None of the dots are on the same line vertically hope this helps:)
4
Explanation:
36, 31, 40, 16
see explanation
given
a² + b² = c² ( isolate b² by subtracting a² from both sides )
b² = c² - a² ( take the square root of both sides )
= ±
b = ±
Ok