A vertical line that passes through -2 on the x-axis.
-2
That line is [ y = 2 cos(2x) ].
-2/3
5
A vertical line that passes through -2 on the x-axis.
The diagonal line collapses into a single point on that line.
-2
That line is [ y = 2 cos(2x) ].
-2/3
Y = 2 The graph is a horizontal line passing through the point Y=2 on the Y=axis. The line is parallel to the X-axis, and exactly 2 units above it everywhere.
The equation you have given, y + 2 = 7, does not describe a line, it describes the number 5. You would not graph a single number, there is nothing to graph.
5
the line of symmetry would occur at x=0
3
This is the graph of a diagnol line. Range: (-infinity, infinity)
The graph of [ y = 4x + 2 ] is a straight line with a slope of 4.Any line with a slope of 4 is parallel to that one, and any line parallel to that one has a slope of 4.