Trên mặt phẳng tọa độ Oxy cho A 11 B 2 - 2 M in Oy vàA.\(\left( {0;\,\,1} \right)\)B.\(\left( { - 1;\,\,1} \right)\)C.\(\left( {1;\,\, - 1} \right)\)D.\(\left( {0;\,\, - 1} \right)\)
Cho hai điểm M 8 - 1 và N 32 Nếu P là điểm đối xứng vA.\(\left( {13;\,\, - 3} \right)\)B.\(\left( { - 2;\,\,5} \right)\)C.\(\left( {11;\,\, - 1} \right)\)D.\(\left( {\dfrac{{11}}{2};\,\,\dfrac{1}{2}} \right)\)
Cho A 03 B 42 Xác định tọa độ điểm D thỏa mãn overrighA.\(\left( { - 3;\,\,3} \right)\)B.\(\left( { - 8;\,\,2} \right)\) C.\(\left( {8;\,\, - 2} \right)\)D.\(\left( {2;\,\,\dfrac{5}{2}} \right)\)
Cho hình bình hành ABCD có tọa độ tâm I 32 và hai đỉnhA.\(A\left( {7;\,\,1} \right),\,\,D\left( { - 2;\,\,5} \right)\)B.\(A\left( { - 2;\,\,5} \right),\,\,D\left( {7;\,\,1} \right)\)C.\(A\left( {7;\,\,5} \right),\,\,D\left( { - 2;\,\,1} \right)\)D.\(A\left( { - 2;\,\,1} \right),\,\,D\left( {7;\,\,5} \right)\)
Cho đường thẳng Delta x - 3y - 6 = 0 và điểm A 2 - 4 TA.\(A'\left( {\frac{4}{5};\,\,\frac{4}{5}} \right)\)B.\(A'\left( {\frac{4}{5};\,\,\frac{2}{5}} \right)\)C.\(A'\left( {\frac{2}{5};\,\,\frac{2}{5}} \right)\)D.\(A'\left( {\frac{2}{5};\,\,\frac{4}{5}} \right)\)
Cho 4 điểm A 0 - 2 rm B - 10 rm C 0 - 4 rm D - 20 TA.\(\left( {1;\,\, - 4} \right)\)B.\(\left( { - \frac{3}{2};\,\,\frac{1}{2}} \right)\)C.\(\left( { - 2;{\rm{ }}2} \right)\)D.Không có giao điểm
Cho 3 đường thẳngd12x + y-1 = 0d2x + 2y + 1 = 0d3mx-y-7A.\(-6\)B.\(6\)C.\(-5\)D.\(5\)
What can be inferred from the passage about the experieA.They can see different seasons come and go.B.It may be hard to tell seasonal difference.C.Food is similar in all four seasons.D.Seasons in a year are similar.
According to the passage all the followings are true EXA.country people eat the same type of food all the year round.B.the author was born and raised on a farm in the country.C.the author takes frozen and tinned food now in the city.D.the author used live in the country where there are four seasons.
Cho hai đường thẳng có phương trình tổng quát như sauDeA.\(\frac{{{a_1}}}{{{a_2}}} = \frac{{{b_1}}}{{{b_2}}} \ne \frac{{{c_1}}}{{{c_2}}}\)B.\(\frac{{{a_1}}}{{{a_2}}} \ne \frac{{{b_1}}}{{{b_2}}}\)C.\(\frac{{{a_1}}}{{{a_2}}} = \frac{{{b_1}}}{{{b_2}}} = \frac{{{c_1}}}{{{c_2}}}\)D.\(\frac{{{a_1}}}{{{a_2}}} = \frac{{{b_1}}}{{{b_2}}}\)
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