Sat Act Math Formula Sheet

Study 24 high-yield SAT/ACT formulas and rules

What You'll Learn

Memorize key SAT and ACT math formulas with free flashcards. Review algebra, geometry, coordinate plane, exponent rules, and statistics essentials.

Key Topics

  • Focuses on formulas most often needed on SAT/ACT
  • Includes geometry, algebra, and data analysis basics
  • Quick format for rapid memorization
  • Ideal for last-minute standardized test review

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How to study this deck

Start with a quick skim of the questions, then launch study mode to flip cards until you can answer each prompt without hesitation. Revisit tricky cards using shuffle or reverse order, and schedule a follow-up review within 48 hours to reinforce retention.

Preview: Sat Act Math Formula Sheet

Question

Slope formula

Answer

m = (y2 - y1) / (x2 - x1)

Question

Slope-intercept form

Answer

y = mx + b

Question

Point-slope form

Answer

y - y1 = m(x - x1)

Question

Distance formula

Answer

d = √((x2 - x1)^2 + (y2 - y1)^2)

Question

Midpoint formula

Answer

((x1 + x2)/2, (y1 + y2)/2)

Question

Quadratic formula

Answer

x = (-b ± √(b^2 - 4ac)) / 2a

Question

Exponent rule: same base multiply

Answer

a^m · a^n = a^(m+n)

Question

Exponent rule: same base divide

Answer

a^m / a^n = a^(m-n)

Question

Power of a power

Answer

(a^m)^n = a^(mn)

Question

Negative exponent rule

Answer

a^-n = 1/a^n

Question

Area of rectangle

Answer

A = lw

Question

Area of triangle

Answer

A = 1/2 bh

Question

Area of circle

Answer

A = πr^2

Question

Circumference of circle

Answer

C = 2πr

Question

Pythagorean theorem

Answer

a^2 + b^2 = c^2

Question

Special right triangle (45-45-90)

Answer

Legs x, x; hypotenuse x√2

Question

Special right triangle (30-60-90)

Answer

Sides x, x√3, 2x

Question

Volume of rectangular prism

Answer

V = lwh

Question

Volume of cylinder

Answer

V = πr^2h

Question

Simple interest formula

Answer

I = Prt

Question

Mean formula

Answer

mean = sum of values / number of values

Question

Probability of event A

Answer

P(A) = favorable outcomes / total outcomes

Question

Percent increase formula

Answer

(new - original)/original × 100%

Question

Percent decrease formula

Answer

(original - new)/original × 100%