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Learn how to write and graph the equation of a straight line in different forms, such as slope-intercept, point-slope and standard form. Find out the meaning of slope, y-intercept, rise and run, and see examples and exercises.
- Point-Slope
Point-Slope Equation of a Line. The "point-slope" form of...
- Test Yourself
Try the following test: Linear Equations
- Calculate The Straight Line Graph
Calculate the Straight Line Graph If you know two points,...
- Gradient
so a "straight up and down" (vertical) line's Gradient is...
- Y Intercept
Y-Intercept of a Straight Line. Where a line crosses the...
- Graph Index
Explore the wonderful world of graphs. Create your own, and...
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- Point-Slope
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.
An equation of a straight line is a linear equation. A straight line on a cartesian plane can have different representations based on the known variables, angles, and constants. The slope of a straight line determines the direction of a straight line and tells how steep the line is.
19 maj 2023 · Learn how to deduce the equation of a line given the slope, intercept, or points using different forms and methods. See examples, exercises, and graphs to illustrate the concepts.
A linear equation is an equation for a straight line. These are all linear equations: Let us look more closely at one example: Example: y = 2x + 1 is a linear equation: The graph of y = 2x+1 is a straight line. When x increases, y increases twice as fast, so we need 2x. When x is 0, y is already 1. So +1 is also needed. And so: y = 2x + 1.
Learn how to use the point-slope form of the equation of a straight line, y - y1 = m (x - x1), when you know one point and the slope. See examples, interactive diagrams, and how it relates to y = mx + b.
Learn how to write and graph the equation of a straight line in the form y = mx + b, where m is the slope and b is the y-intercept. See examples of how to find the slope and y-intercept from two points or one point and the slope.
