It is produced from raw data obtained by measurement or testing.

Find the slope and the y-intercept of the line. This example is written in function notation, but is still linear. As shown above, you can still read off the slope and intercept from this way of writing it. We can get down to business and answer our question of what are the slope and y-intercept.

In this form, the slope is m, which is the number in front of x. In our problem, that would have to be 2. In this form, the y-intercept is b, which is the constant.

In our problem, that would be The answer is the slope is 2 and the y-intercept is Note how we do not have a y. This type of linear equation was shown in Tutorial If you said vertical, you are correct.

The graph would look like this: Note that all the x values on this graph are 5. Well you know that having a 0 in the denominator is a big no, no. This means the slope is undefined. As shown above, whenever you have a vertical line your slope is undefined. Looking at the graph, you can see that this graph never crosses the y-axis, therefore there is no y-intercept either.

Another way to look at this is the x value has to be 0 when looking for the y-intercept and in this problem x is always 5. So, for all our efforts on this problem, we find that the slope is undefined and the y-intercept does not exist.Examine your trend line equation to ensure it is in the proper form.

The equation for a linear relationship should look like this: Y = MX + B. X is the independent variable and is usually the one you have control over.

Free line equation calculator - find the equation of a line given two points, a slope, or intercept step-by-step. A vertical line is a line defined by an equation of the form [latex]x=a[/latex] where [latex]a[/latex] is a constant.

Example: Writing the Equation of a Horizontal Line . It's a horizontal line! And just like the horizon, horizontal lines go straight left and right.

In this tutorial, you'll learn all about horizontal lines including their slope and what the equation of . A linear function is of the form y = mx + b In the applet below, move the sliders on the right to change the values of coefficients m and b and note the effects it has on the graph.

Learn about a class of equations in two variables that's called "linear equations." They are called that way because their graph is a line. These are the most basic and probably most useful equations you will ever know!

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Finding the Equation of a Line Given Two Points 2 | rutadeltambor.com