AQA AS-Level C1 Equations 1.0 / 5 based on 1 rating ? MathematicsAll equations for C1ASAQA Created by: EmilyHopeCreated on: 28-04-16 15:09 What is the Quadratic equation? x= -b +or- Root (b^2-4ac) / 2a 1 of 7 What is the discriminant equation? b^2 - 4ac 2 of 7 How do you work out the distance between two points? Square root of (difference in x)^2 + (difference in y)^2 OR Square root of (x1-x)^2 + (y1 - y)^2 3 of 7 The midpoint? (average x, average y) or ((x1 + x over 2), (y1 +y over 2) 4 of 7 Gradient? change in y / change in x OR y1-y/x1-x 5 of 7 Equation of a straight line? (y-y1) = m(x-x1) 6 of 7 Equation of a Circle? (x-a)^2 + (y-b)^3 = r^2 7 of 7
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