Question

Let L be the tangent to f(x)=x^.5 at any point. Show that the x-intercept of the tangent to the curve at the point (h,h^.5) is -h. Please help!!!

Answer 1

h^.5=1/(2 sqrt(h)) h + b

b = sqrt(h)/2

h^.5=1/(2 sqrt(h)) h + sqrt(h)/2

0=1/(2 sqrt(h)) x + sqrt(h)/2

x= -h

Answer 2

thanks so much

Answer 3

do you get it?