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In the linear equations basics section we discussed the standard form of a linear equation where Ax By = C. This makes the line the equation represents simple to graph. The y-intercept (b) we can see is at -1 from the graph.There are other ways that linear equations can be written that can help provide useful information for graphing. There is the slope-intercept form and the point-slope form. m = slope b = intercept slope = (change in y) divided by the (change in x) = (y2 - y1)/(x2 - x1) intercept = the point where the line crosses (or intercepts) the y-axis y1, x1 = the coordinates of the point you know m = the slope, which you know x, y = variables Example Problems: Graph a line that passes through the coordinate (2,2) and has a slope of 3/2. Watch this tutorial, and learn about the point-slope form of a line! This tutorial shows you how to take two points on the graph of a line and use them to find the slope-intercept form of the line! You'll see how to use values from a table to find the slope-intercept form of the line described in the table.
Watch this tutorial and see how the equation for the slope-intercept form of a line is used to figure out the answer!
This form is quite useful in creating an equation of a line if you're given the slope and a point on the line. Just pick two points on the line and use them to find the equation.
In this tutorial, you'll see how write an equation in slope-intercept form that represents the information given in the word problem. Ordered pairs are a crucial part of graphing, but you need to know how to identify the coordinates in an ordered pair if you're going to plot it on a coordinate plane.
In this tutorial, you'll see how to identify the x-coordinate in an ordered pair!
The Slope-intercept equation from a graph exercise appears under the 8th grade (U.
S.) Math Mission, Algebra I Math Mission and Mathematics II Math Mission.
There are several forms that the equation of a line can take.
They may look different, but they all describe the same line--a line can be described by many equations.
Used by arrangement with Alpha Books, a member of Penguin Group (USA) Inc.
MA, Stanford University Teaching in the San Francisco Bay Area Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts To write the equation of a line in slope-intercept form given an equation not written as y=mx b, use inverse operations to solve for y.