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Graphs of direct variation pass through the origin so the y-intercept would be 0.

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Q: What is the y-intercept of the graph of a direct variation equation?
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Related questions

How do you know if an equation is direct variation?

There are three ways: a table, a graph, and an equation.


What the three ways to represent a direct variation?

equation, table or a graph


Why does the graph of an equation expressing direct variation always pass through the origin?

For a direct variation, y=kx where k is the constant of variation if x =0 then y=0 and the graph of y=kx passes through the origin. -Indiana Prentice Hall Algebra 2 Text Book.


Does y equal 1X show direct variation?

Yes. y = 1x is the same as y = x which is the simplest case of direct variation. If you consider the equation y = mx + b, then a direct variation will always have b = 0 (i.e. the graph goes through the origin). The value of m is called the "constant of variation", and the equation is usually written as y = kx.


Can slope k of a direct variation be positive?

The slope of the graph of a direct variation is always positive.


Does the graph of a direct variation pass through the origin?

yes, a graph of a direct variation must pass through the origin because direct variation is always in form of y=mx where x and y are variables and m is a constant.


Do the slope of direct variation changes as you move along the graph?

No.


What does k correspond to in a direct variation function?

k is the constant of variation and is the gradient (slope) of the relevant graph.


What are two properties of a direct variation graph?

Positive or Negative........I think...


How can you tell by examining a graph if a line represents a direct variation?

The graph must be linear and pass thru the origin


How can you tell if a line is the graph of a direct variation?

It is a straight line passing through the origin.


How can you tell of a line is the graph of direct variation?

It is a straight line passing through the origin.