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Straight
- In geometry a line is always straight (no curves).
www.mathsisfun.com/definitions/straight-line.htmlStraight Line Definition (Illustrated Mathematics Dictionary)
In mathematics, a curve (also called a curved line in older texts) is an object similar to a line, but that does not have to be straight. Intuitively, a curve may be thought of as the trace left by a moving point.
In the Greek deductive geometry of Euclid's Elements, a general line (now called a curve) is defined as a "breadthless length", and a straight line (now called a line segment) was defined as a line "which lies evenly with the points on itself". [1]: 291 These definitions appeal to readers' physical experience, relying on terms that are not thems...
What are the different types of lines? There are two different kinds of lines. (i) Straight line and (ii) Curved line. There are three different types of straight lines. (i) Horizontal lines, (ii) Vertical lines and (iii) Oblique or slanting lines.
There are no straight segments in a curved line. Closed Lines.
- Horizontal Lines
- Vertical Lines
- Oblique Or Slanted Lines
- General Equation of A Straight Line
- Slope and y-intercept Form
- Slope Point Form
- Two Point Form
- Intercept Form
- Equation of Lines Parallel to X-Axis Or Y-Axis
- Zero Slope
The lines which are drawn horizontally and are parallel to the x-axis or perpendicular to the y-axis, are called horizontal lines. They form a 0o or 180o angle with the x-axis and a 90o or 270oangle with the y-axis. In the given figure, ←→ABAB↔is a horizontal line.
The lines which are drawn vertically and are parallel to the y-axis, or perpendicular to the x-axis, are called vertical lines. They form a 90o or 270o angle with the x-axis and a 0o or 180oangle with the y-axis. In the given figure, ←→CDCD↔is a vertical line.
The lines are drawn in a slanting position or form some angle other than 0o, 90o, 180o, 270o, 360owith the horizontal or vertical lines are called oblique or slanting lines. In the given figure, ←→EFEF↔ and ←→GHGH↔are slanted lines. The properties of straight lines are written below. 1. A straight line has infinite length. We can never calculate th...
The general equation of a straight line can be given as ax + by + c = 0, where 1. a, b, c are constants, and 2. x, y are variables. 3. The slope is -a/b
A straight line having slope m = tanθ where θ is the angle formed by the line with the positive x-axis, and y-intercept as b is given by: y = mx + b, where m is the slope.
A straight line having slope m = tanθ where θ is the angle formed by the line with the positive x-axis, and passing through a point (x1, y1) is given by: Slope Point Form as y - y1 = m(x - x1)
A straight line passing through points (x1 , y1) and (x2 , y2) is given by in the two point form as: y - y1 = [(y2 - y1) / (x2 - x1)] (x - x1).
A straight line having x-intercept as a and y-intercept as b as shown in the figure below where point A is on the x-axis (vertical here) and point B is on the y-axis (horizontal here), is given in the intercept formby x/a + y/b = 1
The equation of a line parallel to the x-axisis given by: y = ± a, where 1. a is the distance of the line from the x-axis. The value of a is + ve if it lies above the x-axis, and n -ve if it lies below the x-axis. The equation of a line parallel to the y-axis. is given by: x = ± b, where 1. b is the distance of the line from the y-axis. The value o...
If a line forms a 0o angle with the x-axis, the slopeof the line is 0. The slope of a line is represented by, m = tanθ Here, θ = 0o . Hence m = tan0 = 0. Therefore, a line with the 0 slope is parallel to the x-axis.
What are the Types of Lines in Geometry? Solved Examples. Practice Problems. Frequently Asked Questions. Definition of a Line. You can observe lines all around you: from the ruler in your pencil box to train tracks, from the buildings in the city to the walls in your home.
A line can be straight or curved. In geometry, the word line means a straight line. A straight line is the shortest distance between two points. A straight line is traced by a point moving in a direction that does not change. A curved line is sometimes called a curve.
