PLEASE HELP ASAP ILL MAKE BRAINLIEST HURRY The graph below shows the relationship between the number of tickets sold for a music concert and the amount of money collected from the sale of the tickets. (1 pt.)

Which equation represents the relationship between the tickets sold (t) and the money collected (c)?

A
c=3t

B
c=5t

C
c=10t

D
c=15t

D

Step-by-step explanation:

I'm pretty sure its D but correct me if i got it wrong!

Plugging -6 in for x, we get -2sqrt(-6-7+1)=sqrt(something negative) which is clearly not possible.

Plugging -6 in for f(x), we get -6=-2sqrt(x-7+1) and 3=sqrt(x-7+1). Squaring both sides, we get 9=x-7+1 and by adding both sides by 6 we get 15=x, therefore having (15,-6) and proving that -6 is in the range, but not the domain (B)