Question

a technician is setting up a wi - fi router in an office building. the graph shows how wireless signal strength changes with distance through different materials: air, concrete, and wood.
which material reduces the wi - fi signal the most as distance increases?
air
concrete
wood
all materials reduce the signal equally.
part b.
based on the material identified in part a, what should the technician do to ensure the strongest wi - fi signal throughout the building?

Explanation:

Part A

To determine which material reduces the Wi - Fi signal the most as distance increases, we analyze the slope of the lines representing signal strength vs. distance for each material (air, concrete, wood). A steeper negative slope means a faster decrease in signal strength. The line for concrete has the steepest negative slope among the three, indicating that the signal strength decreases the most with increasing distance through concrete.

Since concrete reduces the Wi - Fi signal the most, to ensure the strongest Wi - Fi signal throughout the building, the technician should minimize the number of walls or barriers made of concrete between the Wi - Fi router and the areas where the signal is needed. This could involve placing the router in a central location with as few concrete obstructions as possible, or using signal - boosting devices (like Wi - Fi extenders) in areas where concrete walls cannot be avoided to counteract the signal loss caused by concrete.

Answer:

B. Concrete

Part B