Jenny buys 22 sport drinks for her soccer team

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

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,