Tangent lines to exponential and logarithmic functions through the origin

Calculus,Curves,Exponential Functions, Exponents and LogarithmsFor each exponential function a^x, a>0, draw the tangent line through the origin. The points of tangency lie on the horizontal line y=e. Likewise, for the logarithmic functions y=logb(x), b>0, the points of tangency lie on the vertical line x=eComponente Curricular::Educação Superior::Ciências Exatas e da Terra::Matemátic