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The equation of a straight line is usually taught in the form: y = mx + c which succinctly expresses the fact that if we plot y against x and the variables obey a relationship of this form we will obtain a straight line graph with gradient or slope m and intercept (where the line crosses the y-axis) c ( fig 1 )
A straight line is a figure formed when two points A (x 1, y 1) and B (x 2, y 2) are connected with the shortest distance between them, and the line ends are extended to infinity. In the image shown below, a straight line between two points A and B is shown.
The normal form of the equation of a straight line is \(x \cos \theta + y \sin \theta = p\), where \(p\) is the perpendicular distance from the origin to the line, and \(\theta\) is the angle the normal makes with the positive x-axis.
Equation of a Straight Line. The equation of a straight line is usually written this way: y = mx + b. (or "y = mx + c" in the UK see below) What does it stand for? y = how far up. x = how far along. m = Slope or Gradient (how steep the line is) b = value of y when x=0. How do we find "m" and "b"?
In this explainer, we will learn how to find and write the equation of a straight line in general form. We recall that the straight line with slope 𝑚 and 𝑦 -intercept 𝑏 is described by the equation 𝑦 = 𝑚 𝑥 + 𝑏 .
The equation of a straight line is a linear equation in x and y that gives the relation between the coordinate points that lie on that line. The equation of a straight line is usually of the form y = mx + c, where m is the slope of the line and c is its y-intercept.
What Is the Equation of a Straight Line? An equation of straight line is the linear equation that expresses the relationship between the coordinate points on a straight line. A straight line extends infinitely on both sides. It has an infinite number of points.
