A pair of radar stations monitors the path of a helicopter. Station A is located at the origin of a coordinate plane. Station B is located 100 miles east of station A. The difference in the distances from the helicopter to each station is 60 miles. Which equation represents the possible locations of the helicopter?
Answer
A
the fraction with numerator open paren x minus 50 close paren squared and denominator 900 minus the fraction with numerator y squared and denominator 1 comma 600 is equal to 1
B
the fraction with numerator open paren x minus 100 close paren squared and denominator 900 minus the fraction with numerator y squared and denominator 1 comma 600 is equal to 1
C
the fraction with numerator open paren x minus 100 close paren squared and denominator 3 comma 600 minus the fraction with numerator y squared and denominator 6 comma 400 is equal to 1
D
the fraction with numerator open paren x minus 50 close paren squared and denominator 3 comma 600 minus the fraction with numerator y squared and denominator 6 comma 400 is equal to 1