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2 votes
The lines shown below are perpendicular. if the green has a solpe of -1/4, what is the slope of the red line?



User Cbender
by
7.0k points

2 Answers

6 votes

Answer:

4 is the slope of the red line.

Explanation:

The product of slopes of two perpendicular lines is -1


m_1* m_2=-1

Slope of green line =
m_1=(-1)/(4)

Slope of red line =
m_2=?


m_1* m_2=-1


(-1)/(4)* m_2=-1


m_2=(-1)* (4)/(-1)=4

4 is the slope of the red line.

User Earlcasper
by
8.4k points
3 votes


\huge{\boxed{4}}

The slope of a perpendicular line is the opposite reciprocal of the given line's slope.

The slope of the green line is
-(1)/(4).

First, find the opposite of this.
-(1)/(4) * -1 = (1)/(4)

Then, find its reciprocal by flipping the numerator and the denominator.
(4)/(1) = \boxed{4}

This means the slope of the red line is
\boxed{4}.

Note: You forgot to attach the graph of the shown lines, but given the slope of one line, I was able to find the slope of the other, knowing that the two lines are perpendicular, which makes an X formation.

User Stefan Ernst
by
7.1k points