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SAT Math Essentials
Key math concepts and strategies for SAT success
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Clone this Deck & Start StudyingFlashcards (6)
Card 1
What is the slope-intercept form of a linear equation?
y = mx + b, where m is the slope and b is the y-intercept.
Card 2
What is the quadratic formula?
x = [-b ± √(b²-4ac)] / 2a, used to solve ax² + bx + c = 0
Card 3
How do you find the midpoint between two points?
Midpoint = ((x₁+x₂)/2, (y₁+y₂)/2). Average the x-coordinates and y-coordinates.
Card 4
What is the distance formula?
d = √[(x₂-x₁)² + (y₂-y₁)²]. Based on Pythagorean theorem.
Card 5
What are the properties of exponents?
x^a · x^b = x^(a+b); x^a / x^b = x^(a-b); (x^a)^b = x^(ab); x^0 = 1; x^(-a) = 1/x^a
Card 6
What is the formula for area of a triangle?