Giúp mình với. Cho đường thẳng d : y = ax + b với a, b là hằng số. Tìm a và b biết d vuông góc với d2 : y = -1/3x + 2017 và đi qua giao điểm của d3 : y = x - 2 với trục tung

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stress Exercise 5​ 1.​A. physical​ B. activity​ C. increase​ D. expectancy 2.​A. conform​ ​B. perhaps​​ C. remove​ ​D. various 3.​A. percentage​ ​B. advantage​ ​C. examine​​ D. influence 4.​A. decay​ ​B. purpose​​ C. however​​ D. invention 5.​A. prefer​​ B. electricity​ ​C. invent​​ D. collaborate 6.​A. amazing​ ​B. ability​ ​C. performance​ ​D. television 7.​A. appear​ ​B. audience​​ C. government​​ D. talented 8.​A. painter​ ​B. energy​​ C. express​​ D. boundary 9.​A. inspire​​ B. resign​​ C. dangerous​​ D. exchange 10.​A. commodity​​ B. material​​ C. deposit​​ D. quality ​ Exercise 6​ 1.​A. petroleum​B. resource​C. occur​D. anger 2.​A. producer​B. consume​C. companion​D. situation 3.​A. attract​B. descend​C. noticeable​D. control 4.​A. widespread​B. anxiety​C. explode​D. alternative 5.​A. direction​B. community​C. garbage​D. utility 6.​A. product​B. convert​C. efficient​D. dispose 7.​A. biological​B. expedition​C. synthetic​D. scientific 8.​A. experiment​B. giant​C. windmill​D. software 9.​A. geometric​B. supply​C. potential​D. pollution 10.​A. destroy​B. disappear​C. development​D. independent ​ Exercise 7​ 1.​A. extent​B. synonymous​C. admit​D. manuscript 2.​A. inadequate​B. available​C. authority​D. purpose 3.​A. demonstrate​B. responsible​C. simplify​D. celebrate 4.​A. secondary​B. expectation​C. supervision​D. sociologist 5.​A. instead​B. furious​C. campaign​D. apartment 6.​A. balcony​B. accident​C. mechanic​D. survey 7.​A. flexible​B. together​C. domestic​D. relaxed 8.​A. control​B. giant​C. windmill​D. software 9.​A. geothermal​B. experimental​C. elementary​D. geographical 10.​A. attendance​B. compulsory​C. geography​D. similar ​ Exercise 8​ 1.​A. politics​B. imaginary​C. result​D. annoyed 2.​A. Japan​B. astronaut​C. unfortunate​D. approximate 3.​A. consequently​B. profile​C. initiate​D. project 4.​A. conference​B. announcement​C. arrival​D. reception 5.​A. argument​B. definite​C. museum​D. permanent 6.​A. treatment​B. prevent​C. intelligent​D. acquire 7.​A. affirm​B. rely​C. infection​D. remedy 8.​A. effort​B. distinguished​C. available​D. luxurious 9.​A. physiology​B. economics​C. nominate​D. competition 10.​A. contribution​B. appropriate​C. opportunity​D. anniversary ​ Exercise 9​ 1.​A. afloat​B. superior​C. passenger​D. contribute 2.​A. chemistry​B. original​C. tribute​D. emphasis 3.​A. sentimental​B. commonplace​C. mathematics​D. information 4.​A. pronounce​B. American​C. soldier​D. prefer 5.​A. muscular​B. instrument​C. dramatic​D. argument 6.​A. magnetic​B. radiation​C. unpleasant​D. equipment 7.​A. distraction​B. considerable​C. recommend​D. description 8.​A. probability​B. attitude​C. technological​D. entertainment 9.​A. emergency​B. encourage​C. shortage​D. distraction 10.​A. natural​B. surplus​C. dynamite​D. decision ​ Exercise 10​ 1.​A. legacy​B. illuminate​C. humanity​D. commemorate 2.​A. numerous​B. recent​C. telescope​D. forever 3.​A. behaviour​B. predict​C. occurrence​D. environmental 4.​A. mishap​B. evacuate​C. vigorous​D. moderate 5.​A. unspeakable​B. accomplish​C. emotional​D. tendency 6.​A. expression​B. response​C. psychologist​D. vehicle 7.​A. development​B. prevent​C. common​D. avoid 8.​A. supply​B. reliever​C. effective​D. remedy 9.​A. familiar​B. repellent​C. antiseptic​D. survive 10.​A. ingenious​B. device​C. enormous​D. dangerous