Help, and can you show your work?

c

Step-by-step explanation:

it wants us to find sin a

the opposite of a is 24 and the hypotenuse is 26

so sin A = 24/26

it wants us to find cos a

the adjacent of a is 10 and the hypotenuse is 26

so cos A = 10/26

have a great day :D

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