Question 514138
y = 2x -3
y-intercept = (0,-3)
x-intercept:
0 = 2x-3
0 = 2*3/2 -3
(3/2,0)
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2x +4y = 8
4y = -2x +8
y = -1/2x +2
y-intercept:  (0,2)
x-intercept:
0 = -1/2x +2
1/2x = 2
x = 4
(4,0)
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You may notice the the slope of the first equation is 2.
So the slope of a perpendicular line will have a slope of -1/2.
That is the slope of the second line.
.
{{{graph(500,500,-5,5,-5,5,2*x-3, -1/2*x+2)}}}