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 ':' '，}])； Is Huaqiang North's second-hand mobile phone reliable? Why is the cost of cancer treatment getting higher and higher? What impact will the "network toilet" have? The price of electric cars has dropped many times. Is the quality guaranteed? 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 = 172008 1752；