Thursday, November 22, 2012
Slope Intercept Form
During the last week in Standard Math class, we have started learning a new formula in the system of equations. The formula is Point Slope form. This Formula is very practical for using when you just know the slope of the graph and its y and x intercept. Other than Point form and standard form, the slope intercept form may look difficult on the first look but when solving it becomes very easy. The definition of point slope form is. Point-Slope Equation of a Line
y – y1 = m(x – x1), where m is the slope and (x1, y1) is a point on the line. Point-slope is the form used most often when finding the equation of a line. After finding the solution you would put it in a graph and trying to find what is a slope and both y and x intercept.
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Luka, you wrote about the Point-Slope Form - "This Formula is very practical for using when you just know the slope of the graph and its y and x intercept." It's not actually the y and x intercept, but rather the coordinates of any point. For example you could know that you have 3000 dollars after saving for 2 years at a slope of $10 a week - you would then be able to find out how much money you started with.
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