What is the slope of a line that is perpendicular to a line with a slope of $$\frac{1}{3}$$ ?

The slope of a line that is perpendicular is the opposite reciprocal, which is $$-3$$ .

If two lines have slopes of $$m_1$$ and $$m_2$$ , when are they perpendicular?

They are perpendicular if $$m_1 \times m_2 = -1$$ .

What is the slope of a line that is perpendicular to a line with a slope of 2?

The slope is $$-\frac{1}{2}$$ .

Write the equation of a line perpendicular to $$y=3x+4$$ that passes through the point (2, 5).

The equation is $$y=-\frac{1}{3}x+6$$ .

What do you call two lines that never intersect?

They are called parallel lines.

If a line has a slope of 3, what is the slope of a line that is perpendicular to it?

The slope is $$-\frac{1}{3}$$ .

What is the general form of the equation of a line?

The general form is $$Ax + By + C = 0$$ .

How do you find the slope between two points (x1, y1) and (x2, y2)?

The slope is given by $$m = \frac{y2 - y1}{x2 - x1}$$ .

What is the slope of a vertical line?

The slope of a vertical line is undefined.

4.3 Equations of Parallel and Perpendicular Lines Flashcards

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16 questions

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1.

FLASHCARD QUESTION

Front

Back

2.

FLASHCARD QUESTION

Front

Back

3.

FLASHCARD QUESTION

Front

What is the relationship between the slopes of parallel lines?

Back

The slopes of parallel lines are equal.

4.

FLASHCARD QUESTION

Front

Back

5.

FLASHCARD QUESTION

Front

Back

They are perpendicular.

6.

FLASHCARD QUESTION

Front

What is the slope of a line parallel to a line with a slope of -5?

Back

The slope is -5.

7.

FLASHCARD QUESTION

Front

If a line has a slope of 0, what type of line is it?

Back

It is a horizontal line.

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