the coordinate plane is a map of points
All points whose y-coordinate is twice its x-coordinate.
Most functions are continuous (connected line), and not just two points... 2 points are simply just coordinates on a graph, and would be very hard (perhaps impossible) to make into a function (unless you have a restricted domain) I may be wrong, but I don't think I am A function has to be a graph that can be expressed through an equation, and only has a max of one y coordinate for each x coordinate, although it may have zero
It describes points on a plane.
In the figure, a line through points C and D will represent the linear relationship between those two points in a coordinate system. This line can be described using the slope-intercept form if the coordinates of points C and D are known. Additionally, the line can be used to predict values or analyze trends related to the data represented by those points.
Scale factor
Cartesian coordinate system
the coordinate plane is a map of points
If the reference points are not correct, the location of any coordinate will be incorrect.
A graph that is not a function, fails the vertical line test. You can draw it by connected all ordered pair of points in a rectangular coordinate system.
Y-axis is the set of all points with x coordinate zero.
All points whose y-coordinate is twice its x-coordinate.
Most functions are continuous (connected line), and not just two points... 2 points are simply just coordinates on a graph, and would be very hard (perhaps impossible) to make into a function (unless you have a restricted domain) I may be wrong, but I don't think I am A function has to be a graph that can be expressed through an equation, and only has a max of one y coordinate for each x coordinate, although it may have zero
It describes points on a plane.
Coordinate Plane
In the figure, a line through points C and D will represent the linear relationship between those two points in a coordinate system. This line can be described using the slope-intercept form if the coordinates of points C and D are known. Additionally, the line can be used to predict values or analyze trends related to the data represented by those points.
Y-axis is the set of all points with x coordinate zero.