SSAT Upper Level Quantitative › How to find the slope of perpendicular lines
Find the slope of the line perpendicular to the line that has the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around.
Find the slope of a line that is perpendicular to the line with the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around to find the slope of the line perpendicular to the given one.
Find the slope of a line perpendicular to the line with the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around to find the slope of the line perpendicular to the given one.
The equation for one line is . What is the slope of the line that is perpendicular to this line?
A line is perpendicular to another if their slopes are negative reciprocals of each other.
Since the slope of the given line is , the negative reciprocal would be
.
What is the slope of the line perpendicular to the line represented by the equation y = -2x+3?
-2/3
-1/2
1/2
2/3
2
Perpendicular lines have slopes that are the opposite of the reciprocal of each other. In this case, the slope of the first line is -2. The reciprocal of -2 is -1/2, so the opposite of the reciprocal is therefore 1/2.
Find the slope of a line that is perpendicular to the line with the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around to find the slope of the line perpendicular to the given one.
Find the slope of a line that is perpendicular to the line with the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around to find the slope of the line perpendicular to the given one.
What is the slope of any line perpendicular to 2_y_ = 4_x_ +3 ?
– 4
2
½
– ½
First, we must solve the equation for y to determine the slope: y = 2_x_ + 3/2
By looking at the coefficient in front of x, we know that the slope of this line has a value of 2. To fine the slope of any line perpendicular to this one, we take the negative reciprocal of it:
slope = m , perpendicular slope = – 1/m
slope = 2 , perpendicular slope = – 1/2
Find the slope of a line that is perpendicular to the line with the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around to find the slope of the line perpendicular to the given one.
Find the slope of a line that is perpendicular to the line with the equation .
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, change the sign and flip the fraction around to find the slope of the line perpendicular to the given one.