Question 930346
leak rate equation starting at 1-hour after leak began:
x = hours
y = feet
y = mx + b
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leak rate = m = slope = dy/dx
leak rate = (8-6)/(3-1)
leak rate = (2)/(2)
leak rate = 1 ft/hour
m = 1 ft/hour
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y-intercept = b = water level 1-hour after leak began
b = 8 ft
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leak rate equation starting at 1-hour after leak began:
y = x + 8
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water level when the tank first began to leak:
y = x + 8
y = (0 - 1) + 8
y = -1 + 8
y = 7 ft
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