Finding The Gradient Of The Tangent At A Point; Graphing The First And Second Derivative - Casio CFX-9850GB PLUS Getting Started

Integration
Press G-SOLV (SHIFT F5) then F6 (the continuation key) and finally ∫dx (F3). Use
the left arrow key to set the lower limit at X=-3 then press EXE. Set the upper limit at
X=0 and press EXE.

Finding the gradient of the tangent at a point

Press SHIFT MENU to enter the SETUP of the graph mode. Highlight Derivative,
and press ON (F1). Press EXIT and DRAW (F6) then trace the function again by
pressing TRACE (SHIFT F1). This will now show the derivative at each point on the
function.

Graphing The First and Second Derivative

To graph the derivative of this function, press EXIT to allow you to type in another
function and highlight Y2. Press OPTN, CALC, d/dx (F1). Then press VARS, GRPH
(F4), Y (F1). Then type 1, X and close the brackets. Press EXE and DRAW (F6). You
can trace these graphs by pressing TRACE (SHIFT F1). To trace the graph of the
derivative, press the down arrow. It is possible to draw the derivative in a different
colour than the original function.
It is possible to draw the second derivative of the function using the same process.