geogebra

input

checkbox

slider
g(x) = f(m x) +3
space indicate muliplication

text box

image.png

tangent line
click point + graph of function

geometry
use two points to draw line

prependicular

click point and click horrizontal line to the point

draw angle

image.png

angle BDC draw obtuse angle
angle CDB draw acute angle

root point of graph
R=ROOT[f(x)]
extremum point of graph
E = EXTREMUN[f(x)]

sequence of point
SEQUENCE[((sin(i x),cos(i x)),i,0,n-1]

logorithmic function
f(x) = ln(x)/ln(4)