So let's first thinkĪbout point-slope form. And I encourage you, like always, pause the video and see if you can do it. In both point-slope form and in slope-intercept form. Now what I want to do in this video is I want to say, well can weįind that linear equation and can we express it Represents all of the solutions to this linear equation. Now let's say we also know, we also know that when X is equal to six Y is equal to one. We have a linear equation and we know when X is equal to four that Y is equal to nine and we've plotted that I hope that this helped! I have never answered a question before, so I'm sorry if this answer seemed to go on forever. So you would set up the slope equation like so: So now you know that there is no y-intercept in this problem. To find slope you would do the following:

$point slope form maker$

Remember, it is change in Y over change in X because you need to find the independent variable for the slope. I bought 2 ornaments, so my points for the graph would be the following: Otherwise, you would be searching for Y, and you already know what it is. That is why you always do change in Y over change in X. So you already know what the dependent variable is. The dependent variable is the amount of money because it changes depending on the amount of ornaments. Every ornament I buy increases the amount of money I spend by $2. So say for example that I am looking for christmas tree ornaments. So when you are finding slope, you are trying to find the rate of change of the independent variable. It is not the change in X over the change in Y because X is always the independent variable in the situation, and Y is always the dependent variable in the situation.

Point slope form maker