PLEASE HELP, MARKING BRAINLIEST!!!
What is the value of x and y?

Answer:
x = 8
y = radical 128
Step-by-step explanation:
Since this is a 45, 45, 90 triangle, the value of x is equal to the adjacent side -- 8.
To find y, use pythagorean theorem:
a² + b² = c²
8² + 8² = y²
128 = y²
y = radical 128