Why is the tangent equation parallel to the parabola y = x & # 178; with the straight line 2x-y + 4 assumed to be X & # 178; - 2x-c = 0

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• 1. If the point P on the parabola y = x & # 178 is tangent L and the tangent L is perpendicular to the straight line 2x-y-5 = 0, then the equation of tangent L is,
• 2. If the distance from a point m on the parabola y = 4x2 to the focus is 1, then the ordinate of point m is () A. 1716B. 1516C. 78D. 0
• 3. If the tangent of point P passing through the parabola y = x ^ 2 is parallel to the straight line 4x-y-5 = 0, then the coordinate of point P is the tangent equation passing through point P?
• 4. Given that the angle between the tangent line at point P on parabola y = x ^ 2 and the straight line y = 3x + 1 is (PAI / 4), try to find the coordinates of point P Let P exit slope k | K-3 | / | 1 + 3K |
• 5. If the angle between the tangent line at point a and the straight line 3x-y + 1 = 0 on the parabola y = x ^ 2 is 45 degrees, what is the coordinate of point a? What are the specific steps of this topic, how to solve the problem of the angle between tangent and straight line, and what kind of thinking should be used?
• 6. Given the parabola y = x & # 178, the angle between the tangent line at the upper point P and the straight line y = 3x + 1 is 45 ° and the coordinates of point P are obtained
• 7. Given the parabola y = x & # 178; + 4 and the straight line y = x + 10, find: (1) the intersection of them; (2) the tangent equation of the parabola at the intersection. Solve it by derivative
• 8. The slope of the tangent at any point P (U, V) of the parabola y = x ^ 2 - 3x + 2 is calculated, and the equation of the tangent at the vertex of the parabola is obtained The answer I got is y = - 1 / 4
• 9. The known parabola y = x ^ 3, the slope of tangent at point x = 2 is?
• 10. How to find the tangent slope of parabola x ^ 2 = 8 (y-b) at point (4, B + 2) RT
• 11. The tangent of parabola y = x2 at point P is perpendicular to the straight line 2x-6y + 5 = 0. The coordinate and tangent equation of point P are obtained Let's talk more about how the slope comes from
• 12. It is known that the parabola y = x ^ 2-2x-8 (2) If the two intersections of the parabola and the x-axis are ab respectively, and its vertex is p, the area of the triangle ABP is calculated
• 13. What is the intersection coordinate of parabola y = - 2x ^ 2-x + 3 and Y axis? What is the intersection coordinate of parabola y = - 2x ^ 2-x + 3 and X axis?
• 14. If there is an intersection (2,4) between the straight line y = 2x and the hyperbola y = 8 / x, then their other intersection is?
• 15. The coordinates of the intersection of the line y = 2x and the hyperbola y = 6 / X are
• 16. The coordinates of the intersection of the line y = 2x and the hyperbola y = 1 / X are_______ Speed! All the teachers and students come to watch The answer is attached with the detailed problem solving process
• 17. 1. The coordinate of the intersection of hyperbola y = 8 / X and straight line y = 2x is? 2. If the inverse scale function image passes through point a (1,2), then when x
• 18. The following propositions are given: proposition 1. The point (1,1) is an intersection of the straight line y = x and the hyperbola y = 1x; Proposition 2. The point (2,4) is an intersection of the straight line y = 2x and the hyperbola y = 8x; proposition 3. The point (3,9) is an intersection of the straight line y = 3x and the hyperbola y = 27x (1) please observe the above proposition and conjecture proposition n (n is a positive integer); (2) use the conjecture of the above question to directly write the solution of inequality 2010x > 20103x
• 19. The intersection coordinates of hyperbola y = 8x and straight line y = 2x are______ ．
• 20. Given that the Quasilinear of the parabola y2 = 2px coincides with the left quasilinear of the hyperbola x2-y2 = 2, the focal coordinate of the parabola is______ ．