The Total solution for NCERT class 6-12
Equationis 4x + 3y = 12If it cuts the x-axis, then y = 0тИ┤┬а4x x 3 x 0 = 12тЗТ┬а4x = 12 тЗТ┬аx =┬а12┬а=3OA = 3 unitsтИ┤ Thepoint of intersection of x-axis is (3, 0)Again if it cuts the y-axis, then x = 0 , Y= 0тИ┤┬а4x x 3 x 0 = 12тЗТ4x┬а= 12┬атЗТ x=┬а┬а12┬а=4тЗТ┬аOB= 4 unitsтИ┤ Thepoint of intersection is (0, 4)тИ┤ Inright ╬ФAOB,AB2┬а= AO2┬а+OB2= (3)2┬а+ (4)2= 9 + 16 = 25= (5)2тИ┤ AB = 5units┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а┬а(c)