C1 - Coordinate Geometry 0.0 / 5 ? MathematicsCoordinate GeometryASEdexcel Created by: jackjj9Created on: 24-09-16 15:49 What is the formula to find the gradient when given 2 points? m = (y2-y1)/(x2-x1) 1 of 17 What is the formula to find the equation of a line when given the gradient and a point? y-y1 = m(x-x1) 2 of 17 What is the formula used to find the equation of line when given 2 points (y-y1)/(y2-y1) = (x-x1)/(x2-x1) 3 of 17 What does m1*m2 equal when lines are perpendicular? -1 4 of 17 True or false, the gradients of 2 lines are equal when they are parallel? True 5 of 17 What is the formula for distance between 2 points? (kinda C2 but often comes up in C1) d= root[(x2-x1)^2+(y2-y1)^2] 6 of 17 What can you also use to find the gradient of a perpendicular line? The negative reciprocal 7 of 17 Is y=4 a horizontal or vertical line? Horizontal 8 of 17 How do you find where 2 lines intersect? Solve the equations simultaneously 9 of 17 How do find the x-intercept? Substitute in y=0 10 of 17 How do you find the y-intercept? Substitute in x=0 11 of 17 What is general form? ax+by+c=0 where a, b and c are integers. 12 of 17 A(9,4) and B(3,2). Equation in general form? x-3y+3=0 13 of 17 What is the gradient of y=3x+7? 3 14 of 17 What is the gradient of the line joining, A(3, 9) and B(6, 12) 1 15 of 17 What is standard form? y = mx+c 16 of 17 What is the equation of a line with gradient 1/2 passing through the point (4, 6)? y = 1/2x + 4 17 of 17
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