(side 1)² + (side 2)² = (diagonal)²
(9.5² + (14)² = (diagonal)²
90.25 + 196 = (diagonal)²
286.25 = (diagonal)²
√286.25 = √(diagonal)²
17 = diagonal
Answer: 17 inches
It’s not a function because the domain (the X) is repeating...
X cannot repeat if you want it to be a function
Answer:
$
Step-by-step explanation:
÷
= 

Hope this helps
check the picture below.
notice, a function that is decreasing, namely have a negative slope, doesn't have to be negative.