What is the equation of a line perpendicular to $$\(y=\frac{1}{3} x+4\)$$ and with the same $$\(\$ \$ \times \$\)$$ - intercept?
A.
\(y=-3 x+4\)
B.
\(y=3 x-36\)
C.
\(y=\frac{1}{3} x+4\)
D.
\(y=-3 x-36\)
Exam No：2020-2021 Math League First Round Grades 8-9 Year：2021 Question No：3
Answer:
D
Knowledge points:
G8-9 - Geometry - Coordinate Geometry (Distance, Midpoint, Slope & Line Relationships)
Solution:
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