solve college algebra problems

Question: Solve graphically: 3x + y + 1 = 0 and 2x - 3y + 8 = 0. Answer: a) 3x + y + 1 = 0 y = -3x - 1 b) 2x - 3y + 8 = 0 3y = 2x + 8 ..

Question: Solve graphically: 3y = 5 - x and 2x = y + 3. Answer: 1) 3y = 5 - x 2) 2x = y + 3 y = 2x - 3 ..

Consider a linear equations in two variables , say, 3x - 2y = 5. It has an infinite number of solutions, some of these are x = 0, Consider a linear equations in two variables , say, 3x - 2y = 5. It has an infinite number of solutions, some of these are x = 0, y = 0. Similarly, if we take another eq..

Question: Solve the following equation: Answer: 2(3x-19)=10 3x-19 = 5 3x=5+19 3x=24 x=..

Question: Solve the following equation: Answer: -58y-232 = -108y+18 -58y+108y = 18+232 50y=250 y=..

Question: Solve the following equation: Answer: x=2..

Question: Solve graphically Answer: x=4 x=4; is a line parallel to y axis. 3x+2y=10 3x=10-2y ..

Question: Solve graphically x+y=-1; y-2x=-4 Answer: x+y=-1 y=-1-x At x=-2, y=-1+2=1 At x=-3, y=-1+3=2 At x=0, y=-1-0=-1 y-2x=-4 y=2x-4 At x=1, y=2-4=-2 At x=-1, y=-2-4=-6 At x=0, y=0-4=-4 ..

Question: Solve graphically 2y-x=9; 6y-3x=21 Answer: 2y-x=9 x=2y-9 6y-3x=21 3x=6y-21 x=2y-7 ..

Question: Solve graphically x + y + 2 = 0 and 3x - 4y = 5. Take 2 cm=1 unit.Write down the co-ordinates of the point of intersection of the two lines. Answer: a) x + y + 2 = 0 y = - x - 2 b) 3x - 4y = 5 4y =3x - 5 ..