SOLUTION: how do you write equations in slope-intercept form and then how can you tell if each pair of lines is parallel, perpendicular, or neither? y = -4x + 1 and y = -4x

SOLUTION: how do you write equations in slope-intercept form and then how can you tell if each pair of lines is parallel, perpendicular, or neither? y = -4x + 1 and y = -4x - 5

Question 174110This question is from textbook Basic Algebra
: how do you write equations in slope-intercept form and then how can you tell if each pair of lines is parallel, perpendicular, or neither?
y = -4x + 1 and y = -4x - 5 This question is from textbook Basic Algebra

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
they are already in slope intercept form y=mx+b where m is the slope
:
these have the same slope of -4 so they are parallel lines
:
to be perpendicular the slopes must be negative inverses of each other such as
:
4 and -1/4 or 6 and -1/6
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