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2 answers:
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The formula of an area of a square:
a - side
We have:
substitute:
The fromula of a perimeter of a square is:
substitute:
Answer:
The equation shows the temperature over time will be:
Hence, option (C) is correct.
Step-by-step explanation:
We know that the slope-intercept form of the line equation is
where m is the rate of change or slope and b is the y-intercept
- Let 'y' be the temperature
- Let 'x' be the time in the hour
Given that one very cold morning, it was -7°F.
Thus, the y-intercept = b = -7
Given that as the day went on, the temperature rose 3 degrees each hour.
Thus, the rate of change = slope = m = 3
Thus, substituting m = 3 and b = -7 in the equation
Therefore, the equation shows the temperature over time will be:
Hence, option (C) is correct.