Question

find the equation of the line tangent to the graph y=sqrt(x) at x=9 help pls

Answer 1

\[\Large \sqrt{x}=x^{\frac{1}{2}}\]

Answer 2

nevermind i think i got it

Answer 3

The power rule basically states \[\Large \frac{ d }{ dx }(x^{n})=nx^{n-1}\]

Answer 4

ok

Answer 5

would it be dy/dy=1/2(x)?

Answer 6

i meant dy/dx=1/2sqrt(x)