Need help with question 4!!

Terra is incorrect because the x values in the table are clearly not repeating, hence it IS a function.

Please mark brainliest if this helped! Thank you!! :)

Step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,