I do not see the lines...
<span>1,234,000 in scientific notation = 1.234 x 10^6
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(3,-4) is your x and y. Plug it in the equation so,
For x,
2x+3y=3
2x+3(-4)=3
2x-12=3
2x=12+3
2x=15
2x/2=15/2
x=7.5
For y,
2(3)+3y=3
6+3y=3
3y=-6+3
3y=-3
3y/3=-3/3
y= -1
The location of K(1,-3) after dilated by a scale factor of 1 is K’(1,-3) also