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Given that point P is on the straight line passing through points B (0,2) and C (4,0), and the ordinate is - 1, point q is on the image of y = 3 / x, if PQ / / Y axis, the coordinates of point q are obtained Well, you should be right. Don't answer indiscriminately
Kbc=-0.5 Lbc:y=-0.5x+2
Y = - 1, x = 6, so p (6, - 1)
PQ / / y so x = 6, y = 1 / 2
So Q (6,1 / 2)
Point P is on the straight line passing through point B (0,2) C (4,0), and the ordinate is - 1. Point q is on the image of y = 3 / X. if PQ ‖ X axis, calculate the coordinates of point Q
Is PQ ‖ Y axis (input error)
PQ is parallel to y, otherwise the previous condition is useless, because the ordinates of PQ are the same, then we know Q
If the distance from a point P on the bisector of ∠ AOB to OA is 5 and Q is any point of ob, then ()
A. PQ＞5B. PQ≥5C. PQ＜5D. PQ≤5
If the distance between P and OA on bisector of ∠ AOB is 5, then the distance between P and ob is 5. Because q is any point of ob, then PQ ≥ 5, so B is selected
It is known that: as shown in the figure, a point P, P1 and P2 in ∠ AOB are respectively symmetrical points about OA and ob. P1p2 intersects OA with m and ob with N. if p1p2 = 5cm, then the perimeter of △ PMN is ()
A. 3cmB. 4cmC. 5cmD. 6cm
∵ P and P1 are symmetrical with respect to OA, ∵ OA is the vertical bisector of line segment PP1, ∵ MP = MP1. Similarly, P and P2 are symmetrical with respect to ob, ∵ ob is the vertical bisector of line segment PP2, ∵ NP = NP2, ∵ p1p2 = p1m + Mn + NP2 = MP + Mn + NP = 5cm, then the perimeter of △ PMN is 5cm
RELATED INFORMATIONS
- 1. As shown in the figure, angle AOB = 30 degrees, Op bisects angle AOB, PD is parallel to OA, intersection ob at point D, PE is perpendicular to OA at point E, if od = 5cm, PE length is calculated Help. School is about to start.
- 2. In the coordinate system, the distance between P (2, - 2) and Q (2,4) is equal to______ The coordinates of the midpoint of the segment PQ are______ ．
- 3. Point a is on the x-axis, on the left side of the origin, 4 units from the origin, then the coordinate of this point is?
- 4. Given p (3, - 2), q (m, 2m-1) and PQ ⊥ X axis, then the coordinates of Q point are____ . (100 points for correct answers)
- 5. Let p be on the x-axis, Q be on the y-axis, m (- 1,2) be the midpoint of the segment PQ, / PQ / be equal to
- 6. If M (2,1) is the midpoint of PQ, then the equation of this line is
- 7. Reason for filling: because C is the midpoint of line segment AB, AC = half AB () because MP = MQ. And point m is on line segment PQ, so m is the midpoint of line segment PQ ()
- 8. Given a straight line y = - kx-2, P (- 2,1) Q (3,2) - when k = 2, what is the ratio of the intersection of the straight line and the line PQ to the partial vector PQ? Secondly, when there is an intersection between the straight line and the line PQ, what is the value range of K?
- 9. Translate point a (m, - 2) to the left by 4 units, and the resulting image is symmetric with point a about the Y axis. Find the value of M
- 10. The coordinate of the point P (1,2) with respect to the y-axis symmetry is the same as that of the point P (1,2)______ ．
- 11. If P is on the image of curve y = LNX, q is on the line y = x, and PQ ‖ Y axis, then the minimum distance from P to the line y = x is? And the minimum value of PQ is?
- 12. The line L passing through the left focus F of the ellipse x ^ 2 / 9 + y ^ 2 = 1 intersects the ellipse at P and Q. if the distance between P and Q is equal to the length of the minor axis of the ellipse, the inclination angle of the line L is calculated Please attach the solution,
- 13. If the line L moves 3 units in the negative direction of x-axis and 1 unit in the positive direction of y-axis, then it returns to its original position, then the slope of line L is () A. −13B. -3C. 13D. 3
- 14. In the plane rectangular coordinate system, the image of a linear function passes through the point a (0,4) B (2,0) (2) to translate the line AB to the left, if the translated line intersects the X axis At point C, and AC = BC, find the coordinates of point C and the expression of the line after translation
- 15. In the plane rectangular coordinate system, the point P of a (0,1) B (2,0) C (4,3) is known to be on the coordinate axis, and the area of triangle ABP and ABC is equal
- 16. If point a (3x + 4,5-2x) is on the bisector of the second and fourth quadrants, find the coordinates of point a
- 17. If point m (3a-9,40-2a) is in the second quadrant and the distance from point m to X axis is equal, try to find the coordinates of point M
- 18. If the point a (2m + 1,3-m) is symmetric about X axis in the fourth quadrant, then the value range of M is_______
- 19. As shown in the figure, the position of right angled trapezoid oabc in the plane rectangular coordinate system is as follows: ab ∥ OC, B (5,3), ab = BC. D (x, 0) is the moving point on OC (not coincident with O and C), DP ⊥ X axis intersects PC at point P, connecting Pb (1) The coordinates of point C are - (2) (1) as shown in figure (1), use the algebraic expression of X to represent the coordinates of point P, and find the value of X when △ PBC becomes a right triangle ② When point P is the intersection of trapezoidal diagonal AC and Bo (as shown in Figure 2), find the value of X
- 20. Draw the following points a (2,1), B (0,1), C (- 4, - 4), D (6, - 4) in the plane rectangular coordinate system, and connect them with line segments to form a quadrilateral ABCD (1) What special quadrilateral is ABCD? A:___ (2) Find a point P in the quadrilateral ABCD so that △ APB, △ BPC, △ CPD, △ APD are isosceles triangles, and request the coordinates of point P