Interactive: Tangent & Secant
Function
:
f(x)=x²
f(x)=x³
f(x)=sin(x)
f(x)=eˣ
x₀
(green):
h
(purple):
-1
0
1
f(x)
tangent
secant (extended)
(x
0
, f(x
0
))
(x
1
, f(x
1
))
Fallback only (disable KaTeX)
Magnet snap to 0 (ε=0.02)
Tip: drag the green point to change x
0
.
As h → 0: m
s
→ m
t
.