In order to find the slope, you need to get y by itself.
Follow the equation: y = mx + b
m = slope
-48 = 2x - 8y
Subtract 2x from both sides of the equation.
-2x - 48 = (2x - 2x) - 8y
(I find it easier to have y first in the equation, but either way is fine.)
-8y = -2x - 48
Divide every number by -8.
-8y/-8 = (-2x/-8) + (-48/-8)
y = 1/4x + 6
y = mx + b
m = 1/4
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y = 0That's the equation of the x-axis.Its slope is zero.
Get the slope of the given line, by putting it into slope-intercept form. Then you can divide minus one by this slope, to get the slope of any perpendicular line.
x - 4y = 3 is the slope of a line perpendicular to line whose equation is y -5 3x plus 8 3.
12
-4