Cold antoje help me answering this please :).
Fake answer will be reported. ​

158.1

Step-by-step explanation:

Distance is the square root of (x1-x2)^2+(y1-y2)^2

square root of (-4-146)^2+(2-52)^2

square root of 150^2+50^2

square root of 22500+2500

square root of 25000

50sqrt10

Rounding is 158.1

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