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The table shows data gathered by an environmental agency about the decreasing depth of a lake during the first few months of a drought.



Time (weeks)


Lake Depth (feet)


0 346.0

2 344.8

5 343.0

7 341.8

10 340.0

12 338.8

The lake's depth after four weeks will be

The table shows data gathered by an environmental agency about the decreasing depth of a lake during the first few months of a drought. Time (weeks) Lake Depth class=

Verified Answer :

texaschic101

(0,346)(2,344.8)
slope = (344.8 - 346) / (2 - 0) = -1.2 / 2 = -0.6

y = mx + b
slope(m) = -0.6
use either of ur points (0,346)...x = 0 and y = 346
now we sub and find b, the y int
346 = -0.6(0) + b
346 = b

so ur equation is : y = -0.6x + 346

after 4 weeks....x = 4
y = -0.6(4) + 346
y = -2.4 + 346
y = 343.6 <=== after 4 weeks it will be 343.6

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