Answer:
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Step-by-step explanation:
Y-1=2(x+3) just plug into the formula
Answer:
A. ![PR = 80.6 yd](https://tex.z-dn.net/?f=%20PR%20%3D%2080.6%20yd%20)
B. Perimeter = 190.6 yd
Step-by-step explanation:
A. Distance between P(10, 50) and R(80, 10):
![PR = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}](https://tex.z-dn.net/?f=%20PR%20%3D%20%5Csqrt%7B%28x_2%20-%20x_1%29%5E2%20%2B%20%28y_2%20-%20y_1%29%5E2%7D%20)
![PR = \sqrt{(80 - 10)^2 + (10 - 50)^2}](https://tex.z-dn.net/?f=%20PR%20%3D%20%5Csqrt%7B%2880%20-%2010%29%5E2%20%2B%20%2810%20-%2050%29%5E2%7D%20)
![PR = \sqrt{(70)^2 + (-40)^2}](https://tex.z-dn.net/?f=%20PR%20%3D%20%5Csqrt%7B%2870%29%5E2%20%2B%20%28-40%29%5E2%7D%20)
![PR = \sqrt{4,900 + 1,600}](https://tex.z-dn.net/?f=%20PR%20%3D%20%5Csqrt%7B4%2C900%20%2B%201%2C600%7D%20)
![PR = \sqrt{6,500}](https://tex.z-dn.net/?f=%20PR%20%3D%20%5Csqrt%7B6%2C500%7D%20)
(nearest tenth)
B. Distance around the park = Perimeter = PR + PQ + QR
PR = 80.6 yd
PQ = |50 - 10| = 40 yd
QR = |80 - 10| = 70 yd
Perimeter = 80.6 + 40 + 70
Perimeter = 190.6 yd
The salary before the increase was $48000.
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