ACT Math: Essential Formulas and Concepts You Must Memorize

Your Cheat Sheet to Math Success

The ACT Math section can be daunting, but having a solid grasp of essential formulas and concepts can significantly boost your score. This guide provides a cheat sheet of the most important formulas you need to know.

Key Formulas and Concepts:

• Algebra:
  • Linear equations: y = mx + b
  • Quadratic formula: x = (-b ± √(b² – 4ac)) / 2a
  • Slope formula: m = (y2 – y1) / (x2 – x1)
• Geometry:
  • Area of a circle: A = πr²
  • Circumference of a circle: C = 2πr
  • Pythagorean theorem: a² + b² = c²
  • Area of a triangle: 1/2 * base * height
• Trigonometry:
  • SOH CAH TOA
  • sin(x), cos(x), tan(x)
• Statistics and Probability:
  • Mean, median, mode
  • Probability = number of desired outcomes/ total number of outcomes

Strategies for Memorization:

• Create Flashcards: Use flashcards to memorize formulas and concepts.
• Practice Regularly: Solve practice problems to reinforce your knowledge.
• Use Mnemonic Devices: Create mnemonic devices to remember complex formulas.
• Review Regularly: Review your formulas and concepts regularly to maintain retention.

Your Cheat Sheet to Success:

By mastering these essential formulas and concepts, you can approach the ACT Math section with confidence and achieve a higher score.