How to find out if lines are perpendicular - Math
Card 1 of 12
Which of the following are perpendicular to the line with the formula 
?
I.
II. 
III. 
Which of the following are perpendicular to the line with the formula
I.
II.
III.
Tap to reveal answer
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that 
is also equal to 3, so both of these slopes are correct. The y-intercept does not matter, as the slope is the only thing that determines the slant of the line. Therefore, numerals I and III are both correct.
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that
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Which of the following lines is perpendicular to 
?
Which of the following lines is perpendicular to
Tap to reveal answer
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of 
, so the perpendicular slope must be 
.
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of
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Which of the following lines will be perpendicular to 
?
Which of the following lines will be perpendicular to
Tap to reveal answer
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard 
form, the 
is the slope. A perpendicular line will have a slope of 
.
The slope of our given line is 
. Therefore we want a slope of 
. The only line with the correct slope is 
.
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard
The slope of our given line is
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Which of the following are perpendicular to the line with the formula ?
I.
II.
III.
Which of the following are perpendicular to the line with the formula
I.
II.
III.
Tap to reveal answer
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that is also equal to 3, so both of these slopes are correct. The y-intercept does not matter, as the slope is the only thing that determines the slant of the line. Therefore, numerals I and III are both correct.
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that
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Which of the following lines is perpendicular to ?
Which of the following lines is perpendicular to
Tap to reveal answer
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of , so the perpendicular slope must be .
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of
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Which of the following lines will be perpendicular to ?
Which of the following lines will be perpendicular to
Tap to reveal answer
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard form, the is the slope. A perpendicular line will have a slope of .
The slope of our given line is . Therefore we want a slope of . The only line with the correct slope is .
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard
The slope of our given line is
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Which of the following are perpendicular to the line with the formula ?
I.
II.
III.
Which of the following are perpendicular to the line with the formula
I.
II.
III.
Tap to reveal answer
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that is also equal to 3, so both of these slopes are correct. The y-intercept does not matter, as the slope is the only thing that determines the slant of the line. Therefore, numerals I and III are both correct.
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that
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Which of the following lines is perpendicular to ?
Which of the following lines is perpendicular to
Tap to reveal answer
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of , so the perpendicular slope must be .
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of
← Didn't Know|Knew It →
Which of the following lines will be perpendicular to ?
Which of the following lines will be perpendicular to
Tap to reveal answer
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard form, the is the slope. A perpendicular line will have a slope of .
The slope of our given line is . Therefore we want a slope of . The only line with the correct slope is .
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard
The slope of our given line is
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Which of the following are perpendicular to the line with the formula ?
I.
II.
III.
Which of the following are perpendicular to the line with the formula
I.
II.
III.
Tap to reveal answer
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that is also equal to 3, so both of these slopes are correct. The y-intercept does not matter, as the slope is the only thing that determines the slant of the line. Therefore, numerals I and III are both correct.
The slope of a perpendicular line is equal to the negative reciprocal of the original line. This means that the slope of our perpendicular line must be 3. We can also note that
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Which of the following lines is perpendicular to ?
Which of the following lines is perpendicular to
Tap to reveal answer
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of , so the perpendicular slope must be .
In order for two lines to be perpendicular to each other, their slopes must be opposites and reciprocals of each other, meaning the fraction must be flipped upside down and the signs must be changed. In this situation, the original equation had a slope of
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Which of the following lines will be perpendicular to ?
Which of the following lines will be perpendicular to
Tap to reveal answer
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard form, the is the slope. A perpendicular line will have a slope of .
The slope of our given line is . Therefore we want a slope of . The only line with the correct slope is .
Two lines are perpendicular if they have opposite reciprocal slopes. When a line is in standard
The slope of our given line is
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