The answer is C.
If we square both sides of the equation, we can rid of the exponent on the right side and add a square root to x + 4
If the starting point is (0,0), then she goes to (0, -8), then to (-13, -8), then to (-13, 0), then to (-7, 0). (-7, 0) is 7 units from the starting point. So, 7 blocks.
Answer:
-9, 15
Step-by-step explanation:
Subtract 7 and multiply by 4
1/4 |2x-6| +7 = 13
1/4 |2x -6| = 6
|2x -6| = 24
2x -6 = ± 24
2x = 6 ±24
x = 3 ±12
x = -9, 15
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For graphing purposes, it is often convenient to rewrite the equation so the solutions are where the function is zero. Here, we can do that by subtracting 13 from the equation.
(1/4 |2x -6| +7) -13 = 0