Is Y=4/5x-8 and y=-5/4+3 perpendicular?
1 answer:
Answer:
yes
Step-by-step explanation:
The product of the slopes of perpendicular lines = - 1
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = x - 8 ← is in slope intercept form
with slope =
y = - x + 3 ← is in slope- intercept form
with slope = -
Now
× - = - 1
Hence the 2 lines are perpendicular
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