ok...so i got 60 mark test tomowrrow and i really need help...is there a way to tell a graph's domain and range without graphing it just through the algebric equation??? like
y=sqrt(2x-1)
i want to save as much time on test as possible so any way at all guys and girls? thnx in advance
ok so i need the inverse function of the equation y=sqrt(9-x^2)
i did it but not sure if its correct.. i got y=sqrt(-(x^2-9))
can some describe to me what the shape of the graph would look like and if my answer is rite or wrong or how the right way is ALSO VERY IMPORTANT... can you tell me...
