Yes this is a function because the definition of a function is if the x doesn’t repeat and we can test this with the vertical line test that states that if you put an imaginary line where the points are the x shouldn’t repeat in this case this is true as the x doesn’t repeat
Your welcome
Answer:
12.5
Step-by-step explanation:
x = 2.5
5( 2.5 )
12.5
hopefully this helps you out