If angles are measured in radians, the graph consists of the set of points (0.1974+k*pi, 5) where k is an integer. If they are measured in degrees, the points are (11.31+k*180, 5)
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That line is horizontal on the graph. Its slope is zero.
It is a horizontal line 5 units above the x-axis.
The figures are exactly the same, but every point on the first graph is exactly 13 below the corresponding point on the second one.
The equation y = 4x^2 + 5 is a parabola
If: y = -2 and y = 2/5x-4 Then: x = 5 The lines meet at: (5, -2)