Evaluate the integral by making an appropriate change of variables.Round your answer to two decimal places. 
R is the parallelogram bounded by the lines 
Definitions:
Blindsight
A condition where individuals can respond to visual stimuli without consciously perceiving them, typically as a result of damage to the primary visual cortex.
Visual Information
Visual information refers to data perceived through the sense of sight, involving the processing and interpretation of images by the visual system to understand one's environment.
Conscious Awareness
The state of being awake and aware of one's thoughts, feelings, sensations, and environment.
Difference Threshold
The minimum difference in stimulation that a person can detect 50% of the time, also known as just noticeable difference (JND).
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