Question

the point of intersection of 2x+3y=0 and 3x-7y =0 is_____​

Answer 1

Answer:

3x-7y+5=0

2x+3y-5=0

..

6x-14y+10=0 (multiply by 2)

6x+9y-15=0 (multiply by 3)

subtract

-23y+25=0

y=25/23≈1.087

2x=5-3y=5-75/23

x=(5-75/23)/2≈0.870

point of intersection: (0.870,1.087)

equation of line: y=mx+b

y=3x+b

solve for b using coordinates of point of intersection

1.087=3*.870+b

b=-1.523

y=3x-1.523

comment: what horrible answers!Step-by-step explanation: