Need help please and fast thank you

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: (-6,3)

step-by-step explanation:

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°