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horizontal and vertical axes
A graph is one of the ways of showing the relationship that exist between two or more quantities.
Time and the distance from a fixed point (the origin) - either in a fixed direction or radially.
The result will be a plane that intercepts the x-, y-, and z-axes at +9, +6, and +3, respectively.
The production possibility frontier graph shows the various quantities of two products that can be produced. The two products may be shown on either axis.
The simplest phase diagrams are pressure-temperature diagrams of a single simple substance, such as water. The axes correspond to the pressure and temperature. The phase diagram shows, in pressure-temperature space, the lines of equilibrium or phase boundaries between the three phases of solid, liquid, and gas.
A diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
A diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
quantities of productive inputs
horizontal and vertical axes
A graph is one of the ways of showing the relationship that exist between two or more quantities.
surface temperature and luminosity
There is no boiling point in the p,T diagram: it is a line between the vapor and liquid phase.Cf. phase diagram in 'Related links' just below this answer][The simplest phase diagrams are pressure-temperature diagrams of a single simple substance, such as water.The axes correspond to the pressure and temperature.The phase diagram shows, in pressure-temperature space,the lines of equilibrium or phase boundaries between the three phases of solid, liquid, and gas.]
Phase diagrams typically show the boundaries between the different phases based on 2 or more variables. For 2 factor diagrams the variables may be temperature & pressure, volume & pressure (often with isotherms superimposed), temperature & composition, or (in the case of a 3 dimensional diagram, temperature, pressure & volume (where instead of isotherm lines, temperature becomes a variable on one of the 3 axes). The choice of variables depends on what you need to compare.
Scatterplot is another word for scatter diagram. A scatter diagram is a graph with two variables plotted along two axes to show a pattern.
πab, where a and b are the lengths of the semi-major and semi-minor axes, respectively. A=pi*a*b
The axes of any phase diagram have temperature (x-axis) and pressure (y-axis). With a temperature of 273K and a pressure of 101.325 kPa , water is at its freezing point. Now keeping the same temperature (273K) , but reducing the pressure to say , 100 Pa ,water will be a gas. Conversely, at a temperature of 373K and 101,325 kPa water is at its boiling point. However, if you increase the pressure to say 10 MPa, water remains a liquid. If you keep the same temparture 373 K and increase the pressure to 10GPa then water remains a solid. Another way is to randomly select any given point on the phase diagram, say in the Gas phase and read the temperature and pressure.