(7,0) is the distance between martina's guess and where the boat actually is
21/2 is what you should get if you divide those two
No it is missing 10 yards in length
So if an equation was f(x)=x+4
you would automatically change f(x) into y
so it would y-y=x(x-x)
so you plug in the x and 4 which is the first y and x
y-4=x(x-x)
you switch the numbers around
so your final answer would be x-4
I’m not sure i understand your question, could you send a picture of the question ??? i want to help you out ☝