if you were to graph x=5, how would it look like? And where can I find an online graphing calculator? and what does it mean in math for something to be undefined?
What exactly is x=5? is it a function or something?
x=5 is a vertical line, 5 units to the right of the y-axis
it is not a function, since it fails the "vertical line" test, that is , for a given x, there is more than one value of y.
Any relation, such as x + y = 8 merely describes the relationship between the x and y coordinates of a specific set of ordered pairs.
e.g. (1,7), (5,3) or (-2,10) all have the relationship that if you add them you get 8, that is, x + y = 8
so when you have x = 5, points such as (5,4), (5,1) or (5,-456) all satisfy the given relation.
for an online graphing calculator, do a google search, I actually had one this morning, but did not mark the page.
found the page
Here is a simple graphing program.
http://www.coolmath.com/graphit/
enter the function value without the y = part
e.g. for y = x^2 - 4
just enter x^2-4, then click on the "eval"
at the bottom you will see the coordinates of the cursor.
thank you!
If you were to graph the equation x = 5, it would appear as a vertical line passing through the x-coordinate 5. This means that no matter what value you assign to y, the x-coordinate will always be 5.
To find an online graphing calculator, you can search on popular search engines using terms such as "online graphing calculator." Several options will be available to choose from. Some examples include Desmos, GeoGebra, and Symbolab.
In mathematics, the term "undefined" refers to a situation where a value or expression does not have a meaning or cannot be determined. This can arise in various contexts, such as when dividing a number by zero or taking the square root of a negative number. When a mathematical operation leads to an undefined result, it indicates that the operation is not valid or does not have a meaningful interpretation.
In the case of x = 5, it is not a conventional function with a range of output values but rather a vertical line with a fixed x-coordinate of 5.