X 1=-4，x2=2，
∴ The coordinates of point A and point B are A (-4,0) and B (2 2,0) respectively.
(2) As shown in figure 1, if the straight line l 1∑AC intersects the Y axis at point D 1, then S△ACB=S△ACD 1
Let the expression of straight line AC be y=kx+b, and substitute it into a (-4,0) and c (0 0,3).
Have to? 4k+b = 0b = 3，k = 34b = 3。
∴ Linear AC expression y = 34x+3.
∫ the straight line L 1 is parallel to AC,
∴ Let the expression of the straight line L 1 be y=34x+b and substitute it into b (2 2,0).
Solution: b=-32,
∴D 1 point coordinates are (0, -32),
According to symmetry, the D2 coordinate is (0, 152).
The coordinates of point ∴D are (0, -32) and (0, 152) respectively.
(3)∵ The straight line Y =-K4x+K (k > 0) intersects the X axis at point E, so that y=0, then -k4x+k=0, and x=4 is obtained.
∴ The coordinate of point E is (4,0),
As shown in Figure 2, there are two straight lines, AB is the diameter ⊙F, and the tangent passes through point E ⊙F and tangent point H.
∵ straight line y=- I have praised it and stepped on it. What is your evaluation of this answer? Put away comments//high quality or satisfaction or special types or recommended answers dottimewindow.iperformance & window.iperformance.mark ('c _ best',+newdate); Lawyer recommendation service: If your problem has not been solved, please describe your problem in detail and provide free professional consultation through Baidu Law Professional Edition. Other similar problems 2023-06- 14 are shown in the figure. Parabola Y =-4/3x 2+BX+4 intersects with X axis at (-3,0), and two points b intersect with Y axis at-|| |. It is known that the parabola Y =-2/5x 2+BX+C intersects the X axis at point A (5,0) and the Y axis at point B (02022-06- 1 1 as shown in the figure, the square of the parabola y=X -2x-3 intersects the X axis at points A and B (point A is at point B). Parabola y=ax2+bx-3 intersects with X axis at points A (-1 0) and B, and intersects with Y axis at point C. S △ ABC = 6882017-10-03 is as shown in the figure. Parabola y=-3/8x? -3/4x+3 intersects the X axis at points A and B (point A is on the left of point B) and the Y axis at point C1952013-01-06). As shown in the figure, it is known that the parabola y=x2+4x+3 intersects with the X axis at points A and B, the parabola y = ax 2+bx-3 intersects with the X axis at points A and B, and intersects with the Y axis at point C, passing through point (2, -3a)5520 14-05-04 as shown in the figure, and the parabola y =-3. & gt recommended for you: F.context('cmsRight', [{'URL':'/d01373f082025aaf511aa256e9edab64034f1a07? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId':'A24KA00562 '，}，{ ' URL ':/s？ word = % E6 % AC % A7 % E6 % B4 % B2 % E6 % 9D % AF & sa = searchpromo _ ozb _ zhidao _ tuijian '，' src ':'/3 BF 33 a 87 e 950352 AAF 5 df 4954 143 fbf2b 2 1 18 b6b？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId ':' '，}])； The price of electric cars has dropped many times. Is the quality guaranteed? What impact will the "network toilet" have? Is Huaqiang North's second-hand mobile phone reliable? Why is the cost of cancer treatment getting higher and higher? I recommend f.context ('recbrand', [{"img": "\/86D6277F9E2F07083523F69DFB 24B 899A901F20d? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto "，" url":"/hm.js？ 6859 ce 5a af 00 FB 00387 e 6434 E4 FCC 925 "； var s = document . getelementsbytagname(" script ")[0]； s.parentNode.insertBefore(hm，s)； })(); window . TT = 1720099367；