Question 8 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
A marine biologist needs to put a GPS device underwater, halfway between two tracking stations to help document great white shark movements. Tracking station # 1 is located at open paren negative 50 comma negative 25 close paren and tracking station # 2 is at open paren 200 comma negative 65 close paren Where does the GPS device need to be located?
Answer
A
open paren 150 comma negative 90 close paren
B
open paren 67 point 5 comma negative 37 point 5 close paren
C
open paren 75 comma negative 45 close paren
D
open paren 135 comma negative 75 close paren
Explanation
To find the point halfway between two stations, average their x-coordinates and their y-coordinates. The midpoint is ((-50 + 200)/2, (-25 + -65)/2) = (75, -45). So the GPS device should be located at (75, -45), choice C.
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