How do you find the direct variation equation of the graph through the points (0, 0) and (1, -2)?

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How do you find the direct variation equation of the graph through the points (0, 0) and (1, -2)?

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Answer 1 · 2016-02-03T16:11:16

#x*y = -2#

Explanation:

If the graph of a linear relation passes through the origin and is neither horizontal nor vertical,
then it is a direct variation equation of the form:
#color(white)("XXX")x*y = m#
where #m# is the slope of the line: #(Delta y)/(Delta x)#
In this case: #m=(-2-0)/(1-0)= -2#

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How do you find the direct variation equation of the graph through the points (0, 0) and (1, -2)?

1 Answer

Explanation:

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