Learn about the slope and y-intercept of a line in this comprehensive tutorial. Understand the concepts, learn how to find them from graphs and coordinates, and see practical examples.
What you’ll learn:
Slope: Measure of a line's steepness, calculated as the ratio of the rise (change in y) to the run (change in x).
Finding Slope from a Graph: Choose two points on the line, count the rise and run, and write the slope as a fraction.
Finding Slope from Two Points: Use the formula m = (y2 - y1) / (x2 - x1) to find the slope between two given points.
Y-Intercept: The point where the line crosses the y-axis, written as (0, y).
Finding Y-Intercept from a Graph: Locate the point where the line crosses the y-axis and write it as an ordered pair.
These concepts will help you master the basics of linear equations and graphing lines in algebra.
Watch now to enhance your understanding of slopes and y-intercepts, and improve your algebra skills!
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