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How do you determine direct and inverse proportion on graphs?
If the variables x and y are in direct proportion then the graph of y against x is a straight line through the origin. If the variables x and y are in inverse proportion then the graph of y against x is a rectangular hyperbola. Alternatively, the graph of y against 1/x (or 1/y against x) is a straight line through the origin.
What shape is the graph for y equals 3x2 look like?
It is a parabola emanating from the origin. Plot some +/- points when X = 1; Y =1 (+/-) when X = 2; Y = 12 (+/-) when X = 3; Y = 27 (+/-) same for when X = -1,-2,-3 etc
How do you graph equation y equals x plus 4?
y=x+4 To graph this, you need to find the y-intercept in the equation which is 4. Plot that on the graph by going up 4 from the origin (0,0). Next, go right one, up one and plot. Then, right one, up one again.
What is the symmetry to y-x3?
Let F(x,y) = y - x^3 Note that (-x)^3 = -(x^3) This suggests that F(-x,-y) = -F(x,y) (-x,-y) represents the point (x,y) reflected through the origin. You could say the function F has anti-point symmetry -- each point (x,y,F) is reflected through the origin at (-x, -y, -F).
What are the x and y axis used for?
The x and y axes are horizontal and vertical number lines that intersect each other at right angles at the point of origin (0, 0) on the Cartesian plane and is used to plot graphs on it by given sets of coordinates.
