What do you need to know for the ACT?

These are the topics or concepts that we see and teach because they are most commonly found on the test.

Most common

1. Exponents
2. Fractions
3. Average
4. Unknown Angle Values
5. Absolute Value
6. Solving Systems of Equations
7. Scale Factor
8. Pythagorean Theorem
9. Midpoint
10. Area/Perimeter of Basic and Composite Shapes
11. Probability
12. Quadratic Formula
13. Quadratic Factorization
14. Quadratic Equations: factored, vertex
15. Equation forms: slope, point slope
16. Multi-Step Conversion
17. Mean, Median, Mode, Range
18. Negatives
19. Percents
20. Solving Trig Functions
21. Matrix Addition and Subtraction
22. Function Tranformations
23. Circles, Hyperbolas, Ellipses
24. Linear Equations/Slope
25. Composite Function
26. Independent Probability
27. Logarithms
28. Imaginary Numbers: Addition, Subtraction, Multiplication, Division
29. Rate, Time Distance
30. Radical Operations: Addition, Subtraction, Multiplication, Division
31. Ratio Word Problem
32. Scientific Notation
33. Area
34. Solving one variable equations
35. Special Right Triangles
36. Word problem with Time
37. Factoring: Difference of Two Squares, Shortcuts
38. Volume of a Prism, Cone, Sphere
39. Quadratic Equations match up
40. Conjugates
41. Circle Equation
42. Compare Fractions
43. Arc Measure or Sector
44. Radians to Degrees
45. Law of Sines and Cosines
46. Pythagorean Triples
47. Similar Triangles
48. Circle Angle Rules
49. Exponential Growth/Decay

These topics are not as frequently found on the test.

Less Common Topics

1. Arithmetic Summations
2. Arithmetic and Geometric Sequences
3. Change the Base
4. Domain and Range
5. Faces on a 3D Figure
6. Factorials
7. Permutation
8. Reciprocal vs Inverse Trig Functions
9. Stem and Leaf Plots
10. Step Function
11. System of Equations with Three Equations
12. Triangle Inequality Theorem
13. Value/Frequency Charts
14. Expected Value