When Luke left his house in the morning, his cell phone battery was partially
charged. The charge remaining in Luke's battery, as a percentage, can be modeled by
the function B(t) = 54 – 4.5t, where t is the number of hours since Luke left his
house. What is the x-intercept of the function and what is its interpretation in the
context of the problem?
The x-intercept of the function is
which represents
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attempt i out of 2