Bar charts or histograms.
A system of equations will have one solution if the graphs of the lines intersect. This is because the lines intersect at a single point. Let's say that point is (a, b). The x = a, y = b is the one and only solution for the system.
They are simply just called lines.
Two coplanar lines that never intersect are called called parallel lines.
Straight lines that never cross are called parallel lines.
Coplanar lines that do not intersect are parallel. Non-coplanar lines that do not intersect are called skew lines.
No, they NEVER ever have strait lines. Some graphs may have straight lines but most do not.
No they do not.
by their lines
co ordinates
If the data does not change continuously, it is called discrete data, and is commonly compared by use of a bar chart.Technical note: please note the use of the word chart, graph is commonly misused in a mathematical sense like this. A graph, mathematically, is a series/group of nodes that represent information and are connected by lines/edges that represent a link to other information. Bar graphs, line graphs, histogram graphs, bubble graphs, area graphs etc, are all technically chartsnot graphs. For more info see the link below on graph theory.
they are used for recording information line graphs are just like scatter graphs but you join the lines together
verticle and horizontal lines
in probability, you only guess. while in graphs you only draw lines. but both are boring.
Linear graphs make straight lines. Non-linear graphs make thins like parabolas, hyperbolas, and ellipses.
Well, they are used for graphing information on graphs and are used on maps.
Keys are drawn on some graphs(i.g. line graph) so you know which lines of data are what
Graphs in math books