SAT Math Equations and Tips - Junior Year 2024 Digital SAT Exam Guide With Actual Questions And 100% Verified Answers.

Quadratic Formula - correct answer The Discriminant - correct answer b^2-4ac Arc Formula - correct answer s = r θ Negative Exponents (x^-n?) - correct answer 1/x^n (x-y)^2 - correct answer x^2-2xy+y^2 Pyramid Volume Formula - correct answer V = 1/3(lwh) Percent Change Formula - correct answer % change = difference/original x 100 Rectangular Prism Volume Formula - correct answer V = lwh X - Intercept for Standard Equation - correct answer c / a If the Quadratic has a Positive Discriminant... - correct answer The Quadratic has 2 real solutions Distance Formula - correct answer d = √[( x₂ - x₁)² + (y₂ - y₁)²] Solving Strategies for Quadratic Equations - correct answer Distribution, Factor, Expand, Simplify, Foil Average Formula - correct answer T = AN (A - Average, T = Total, N - Number of things) Sum of the Roots (y=ax^2+bx+c) - correct answer -b/a Product of the Roots (y=ax^2+bx+c) - correct answer c/a Mean - correct answer The average of the data set. Median - correct answer The middle number in the data set. Mode - correct answer The value that occurs most frequently in a given data set. Arc Length Formula - correct answer θ/360 x 2πd Standard Form of a Line Equation - correct answer Ax + By = C Sphere Volume Formula - correct answer V = 4 / 3πr³ Slope Formula for Standard Equation - correct answer -A/B Sector Area Formula - correct answer θ/360 x πr² Standard Equation for a Parabola - correct answer y = ax² + bx + c Sum of Degrees Formula - correct answer 180(n-2) Cone Volume Formula - correct answer V = (1/3)π r^(2) h When the Discriminant equals Zero... - correct answer The Quadratic has 1 Solution When the Discriminant is Positive... - correct answer The Quadratic has 2 Real Solution When the Discriminant is Negative... - correct answer The Quadratic has No Real Solutions (2 Imaginary) Circle Equation - correct answer r² = (x-h)² + (y-k)² Are square roots allowed to be in the denominator of a fraction? - correct answer No PEMDAS - correct answer Parentheses, Exponents, Multiplication or Division, Addition, Subtraction i = ? - correct answer √-1 i^2 = ? - correct answer -1 30 - 60 - 90 Triangle - correct answer 45 - 45 - 90 Triangle - correct answer Similar Triangles have... - correct answer Identical Angles, Proportional Sides, and The Same Trigonometric Functions (x + y)(x - y) = ? - correct answer x² - y² Fractional Exponents: x^(y/z) - correct answer z√(x^y) When a negative number is raised to an odd exponent, the number becomes... - correct answer Negative when a negative number is raised to an even exponent, the number becomes... - correct answer Positive √(x/y) = ? - correct answer √x / √y Direct Proportions Formula - correct answer x1 / y1 = x2 / y2 (x+yi)(x-yi) = ? - correct answer x^2-i^2y^2 = x^2 + y^2 Similar Triangle's Angles are always... - correct answer Congruent Y - intercept of Standard Equation - correct answer C/B Growth Formula - correct answer y = a(1+r)^t Decay Formula - correct answer y = a(1-r)^t Inverse Proportions Formula - correct answer x1 y1 = x2 y2 Vertex Equation for a Parabola - correct answer y = a(x-h)^2 + k Cylinder Volume Formula - correct answer y = π r^2 h Factor Equation for a Parabola - correct answer y = a (x-r1)(x-r2) Pythagorean Triples - correct answer (x+y)^2 = ? - correct answer x^2 + 2xy + y^2 Midpoint Formula - correct answer [ (x₁+x₂) / 2, (y₁+y₂) / 2 ] Soh Cah Toa - correct answer sin= opposite/hypo; cos= adjacent/hypo; and tan= opposite/ adjacent Rate Formulas - correct answer D=RT and W=RT MADSPM - correct answer Multiply Add Divide Subtract Power Multiply √x √y = ? - correct answer √(xy) Slope Formula - correct answer m = (y₂- y₁) / (x₂- x₁) Arcs - correct answer Proportions of the circumference Sectors - correct answer Portions of the area Radians to Degrees Formula - correct answer (radians) x (180°/π) Degrees to Radians Formula - correct answer (degrees) x (π/180°) Total Amount of Radians in a Circle - correct answer 2π Complex Conjugate - correct answer (a+bi) and (a-bi) Y - Coordinate of Vertex in a Quadratic Formula - correct answer Standard Equation for a Line - correct answer y = mx + b Exponent and Root Rule - correct answer Point-Slope Formula - correct answer y - y₁ = m (x - x₁) Density Formula - correct answer D= m / v D = Density