The equation of line q is 5y - 4x = 10. Write an equation of the line that is perpendicular to q and passes through the point (-
15, 8).
2 answers:
Y=mx+b
m=slope
b=y intercept
perpendicuar lines have slopes that multiply to get -1
so
solving for y
add 4x both sides and divide by5 to get
y=4/5x+2
slope is 4/5
perpendicular means the slopes multiply to get -1
so
4/5 times what=-1?
what=-5/4
so
y=(-5/4)x+b
find b
given the point (-15,8)
8=(-5/4)(-15)+b
8=75/4+b
-43/4=b
y=(-5/4)x-43/4
Answer:
The other guy is correct, but to convert to standard form you would get
5x + 4y + 43 = 0
Step-by-step explanation: Guy above to correct, just converting for the Edge users.
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If it's most likely A. or B.
Correct me if I'm wrong.
But, I hope this helps!