# How to write an equation of a line with no y-intercepts

To avoid this vicious circle certain concepts must be taken as primitive concepts; terms which are given no definition. When the line concept is a primitive, the behaviour and properties of lines are dictated by the axioms which they must satisfy. In a non-axiomatic or simplified axiomatic treatment of geometry, the concept of a primitive notion may be too abstract to be dealt with. In this circumstance it is possible that a description or mental image of a primitive notion is provided to give a foundation to build the notion on which would formally be based on the unstated axioms. 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.

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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.regardbouddhiste.com provides a complete online Algebra 1 course.

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## Intercepts of Lines

The notion of line or straight line was introduced by ancient mathematicians to represent straight objects (i.e., having no curvature) with negligible width and regardbouddhiste.com are an idealization of such objects. Until the 17th century, lines were defined in this manner: "The [straight or curved] line is the first species of quantity, which has only one dimension, namely length, without any width.

The equation is now in form (which is slope-intercept form) where the slope is and the y-intercept is Notice if we graph the equation and plot the points (,) and (,), we get this: (note: if you need help with graphing, check out this solver).

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After completing this tutorial, you should be able to: Find the slope given a graph, two points or an equation. Write a linear equation in slope/intercept form. This time it is x’s value that is regardbouddhiste.com where you would cross the y-axis, x’s value is always regardbouddhiste.com will use this tidbit to help us find the y-intercept when given an equation..

Below is an illustration of a graph of a linear function which highlights the x and y intercepts. In the above illustration, the x-intercept is the point (2, 0) and the y-intercept is the point (0, 3).

How To Solve Y=mx+b