Tuesday, December 29, 2015
Writing a Linear Equation from a Table - Algebra I
In this video, you will learn how to write a linear equation from a given table of values. In order to write the equation, you need to know the slope intercept form of a linear equation, which is y = mx + b, y and x being the values, m being the slope, and b being the y-intercept. The slope is always the rise over run, meaning you have to find the change in the y values (y-axis rises/falls), over the change in x values (x-axis left/right). Once you find the slope, you can substitute it into the y = mx + b, and take any coordinate to fill in the x and y variables. Then, you simply solve for b, which is the y-intercept. Once you have the slope and y-intercept, substitute into the slope intercept form, and you have your linear equation.