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Why does the graph of length against period not pass through the origin?
If the question is about a pendulum, the answer is that it should. However, the square-root of the length is directly proportional to the length so that the relationship between the two variables is not linear but quadratic. If the graph is extrapolated accordingly, then it will. There may still be an element of measurement error which may prevent the graph from going exactly through the origin.
What is a proportional graph line?
It is a straight line through the origin.
The graph of a linear relationship will always pass through the origin?
Not always
What would the graph for the equation y2x look like?
If y is equal to 2x, the graph would be a straight line going through the origin. The line would go up and to the right, and the angle at the origin has a tangent equal to 2. This angle is between 63 and 64 degrees.
How do you graph a proportional relationship?
It can be either a straight line through the origin or a hyperbola.
