All High School Math Resources
Example Questions
Example Question #4 : How To Find The Length Of A Line With Distance Formula
What is the length of a line with endpoints at and ?
The formula for the length of a line is very similiar to the pythagorean theorem:
Plug in our given numbers to solve:
Example Question #21 : Coordinate Geometry
Find the distance between points and .
Use the distance formula:
Substitute the given points into the formula:
Example Question #7 : How To Find The Length Of A Line With Distance Formula
What is the length of a line with endpoints of and ?
The distance formula is just a reworking of the Pythagorean theorem:
Expand that.
Plug in our given values.
Example Question #1366 : High School Math
What is the distance between and ?
Let and .
The distance formula is given by .
Substitute in the given points:
Example Question #23 : Algebra I
A line segment has endpoints at and . What is the distance of this segment?
To find the distance, we use the distance formula: .
Expand that:
Plug in our given values.
Example Question #5 : How To Find The Length Of A Line With Distance Formula
If a line has a length of , and the endpoints are and , what is the value of ?
The formula for the length of a line, l, is the distance formula, which is very similar to the Pythagorean Theorem.
Note that the problem has already given us a value for the length of the line. That means . Plug in all of the given values and solve for the missing term.
Subtract from both sides.
Example Question #22 : Coordinate Geometry
What is the distance between points and ?
Use the distance formula:
Plug in the given points:
Example Question #1 : Perpendicular Lines
Write an equation in slope-intercept form for the line that passes through and that is perpendicular to a line which passes through the two points and .
Find the slope of the line through the two points. It is .
Since the slope of a perpendicular line is the negative reciprocal of the original line, the new line's slope is . Plug the slope and one of the points into the point-slope formula . Isolate for .
Example Question #2 : Perpendicular Lines
Find the equation of a line perpendicular to
Since a perpendicular line has a slope that is the negative reciprocal of the original line, the new slope is . There is only one answer with the correct slope.
Example Question #3 : Perpendicular Lines
Find the equation (in slope-intercept form) of a line perpendicular to .
First, find the slope of the original line, which is . You can do this by isolating for so that the equation is in slope-intercept form. Once you find the slope, just replace the in the original equation withe the negative reciprocal (perpendicular lines have a negative reciprocal slope for each other). Thus, your answer is
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