Question

Hello!
Please help with this equation,
Use the first derivative to determine where the function
F(x)= 9x/sqrt(20x-3),,,,Increasing (if there isn't any interval, enter none .)
2. Decreasing (if there isn't any interval, enter none .)

Answer 1

for decreasing value calculator says non real number! dec (-inf,.3) is not correct .. what will be decreasing value. increasing is (.3, inf ) is correct.. from the webwork..

help ...!!!

Answer 2

f(x)= 9x/\sqrt(20x-3)

Answer 3

Did you calculate the first derivative?

Answer 4

hello

Answer 5

the first derivative is .3