Given f(x)=x+sqrt(x)
calculate the tangent line at the point (9,12)
y=___?__(x-9)+12
you have a point: (9,12)
and a slope: y'(9) = 7/6
so the line is
y-12 = 7/6 (x-9)
calculate the tangent line at the point (9,12)
y=___?__(x-9)+12
and a slope: y'(9) = 7/6
so the line is
y-12 = 7/6 (x-9)