The equation y = 5x for x ≤ 2 and y = 10 + 2.5(x-2) for x ≥ 2.
Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
Given that,
For first, the two-hour rate of charge is $5 per hour
So,
y = 5x for x ≤ 2
Over the 2 hours, the rate of charge is $2.5 per hour
So,
y = 10 + 2.5(x-2) for x ≥ 2.
Hence "The equation y = 5x for x ≤ 2 and y = 10 + 2.5(x-2) for x ≥ 2".
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