Question 398715
i need to write an equation for the line that is perpendicular to the given line and that passes through the given point. Please and thank you 

25.y=2x+7 (0,0)

slope m = 2
the perpendicular line will have slope -1/2. ( negative reciprocal)
find b from the equation y = mx +b
plug(0,0,)
0=0+b
b=0
...
so the equation will be{{{(highlight( y=-x/2))}}} 
Check with graph
{{{graph(300,300,-5,5,-5,5,y=(2x+7),y=(-x/2))}}}


The equations below are to be solved in a similar manner

26.y=x-3;(4,6)

27.y= -1/3x + 2;(,2)

28. 3x+5y=7;(-1,2)

29. -10x + 8y =3; (15, 12)

30. 4x-2y=9; (8,-2)