What is the result of isolating y2 in the equation below? (x + 4)2 + y2 = 22 a. y2 = x2 - 8x + 6 b. y2 = 22 - x2 c. y2 = -x2 - 8x + 16 d. y2 = -x2 - 8x + 6 all y2 are y^2

STEP-BY-STEP SOLUTION:

( x + 4 )^2 + y^2 = 22

x^2 + 2 × x × 4 + 4^2 + y^2 = 22

x^2 + 8x + 16 + y^2 = 22

y^2 = 22 - x^2 - 8x - 16

y^2 = - x^2 - 8x + 6

FINAL ANSWER:

Therefore, the answer is:

D. y^2 = - x^2 - 8x + 6

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25 inches - 0.694 yards