ACT math tips and must-have formulas?

Hey guys, I'm feeling a little bit stressed about the math section on the ACT. What are some useful tips for tackling it and which formulas should I be sure to have memorized?

Hi there! Don't stress too much, you can definitely improve your math performance on the ACT with some preparation and strategy. Here are some tips and formulas you should keep in mind:

Tips:

1. Manage your time well: With 60 minutes to answer 60 questions, it's crucial to allocate around 1 minute per question. However, keep in mind the questions get progressively harder, so spend less time on early questions to save time for tougher ones.

2. Use your calculator wisely: Your calculator can be your best friend during the test. Make sure to bring one you're comfortable with, and only use it when necessary to save time.

3. Familiarize yourself with question types: The ACT math section covers pre-algebra, elementary algebra, intermediate algebra, coordinate geometry, plane geometry, and trigonometry. Familiarize yourself with the types of questions from these topics in order to know what to expect.

4. Practice, practice, practice: Take practice tests or quizzes, find and correct your mistakes, and track your progress to reinforce concepts and strengthen weaker areas.

Must-Have Formulas:

1. Quadratic Formula: x = (-b ± √(b^2 - 4ac)) / 2a

2. Slope-Intercept Form (linear equations): y = mx + b

3. Distance formula: d = √[(x2 - x1)^2 + (y2 - y1)^2]

4. Midpoint formula: M = ((x1 + x2)/2, (y1 + y2)/2)

5. Pythagorean theorem: a^2 + b^2 = c^2

6. Area of a triangle: A = (1/2)bh

7. Circumference of a circle: C = 2πr

8. Area of a circle: A = πr^2

9. Surface area of a cylinder: A = 2πr(r + h)

10. Volume of a cylinder: V = πr^2h

11. Trigonometric ratios (SOHCAHTOA): sin(θ) = opposite/hypotenuse; cos(θ) = adjacent/hypotenuse; tan(θ) = opposite/adjacent

Don't forget to review these formulas frequently and practice applying them in different scenarios. Best of luck on your ACT math section!