# Parent Functions Top 30 ```Top 30 Functions (and Relations)
studied in Pre-Calculus and AP Calculus
𝑓(𝑥) =
𝐶
1 + 𝐴𝑒 −𝐵𝑥
Logistic
(Relation)
Circle
𝑓(𝑥) =
1
𝑥2
Reciprocal Squared
(𝑥 − 𝑎)(𝑥 + 𝑏)
𝑓(𝑥) =
(𝑥 + 𝑐)(𝑥 − 𝑑)
(Relation)
Ellipse
Rational
Transcendental
(Trigonometric)
Sine
Transcendental
(Trigonometric)
Transcendental
Cosine
(Trigonometric)
(Relation)
Tangent
Hyperbola
arcsine
Gaussian Curve
#30
arccosine
```
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