From the graph screen we can find and draw the equation of a tangent line at a specified point on the graph of a function. For illustration, we find the tangent line to the function.
at x = 1. First, enter the function into the Y= editor, press to access the zoom menu, then press to select 6:ZStandard.
Here, the equation of the tangent line to at x = 1 is y = -.6x + 4.4.