Answer:
see explanation
Explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
(6)
Given
4x - 2y = 8 ( subtract 4x from both sides )
- 2y = - 4x + 8 ( divide all 3 terms by - 2 )
y = 2x - 4 ← in slope- intercept form
with slope m = 2
Parallel lines have equal slopes, thus
Slope of parallel line is m = 2
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(7)
Given
y =
x + 1 ← in slope- intercept form
with slope m =

Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= -
