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How do you find the constant and slope for direct variation equations?
Wiki User
∙ 10y ago
For a direct variation equation the constant MUST be 0.
Then the ratio of a pair of values of the two variables is the slope.
Wiki User
∙ 10y ago
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Is the constant of variation the same as slope?
yes y=kx is the formula for direct variation, and k represents constant of variation which can also be called slope.
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.
Can slope k of a direct variation be positive?
The slope of the graph of a direct variation is always positive.
What is the variable k in a direct variation?
the slope
Do the slope of direct variation changes as you move along the graph?
No.
Can you have two direct variation equations with same slope?
Yes.
Is the constant of variation the same as slope?
yes y=kx is the formula for direct variation, and k represents constant of variation which can also be called slope.
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.
Difference between the graphs of linear equations and a direct variation?
Linear has a slope direct does not but both go through the orgin
Can slope k of a direct variation be positive?
The slope of the graph of a direct variation is always positive.
When is a linear function considered to be a direct variation?
Direct variation means that a linear function can be written as y = kx. The y-intercept must be (0, 0). The constant, k, is the slope.
What is the variable k in a direct variation?
the slope
Find the constant of variation and the slope of the given line from the graph of y equals 2.5x?
find the constant of variation and the slope of the given line from the graph of y=2.5x
Do the slope of direct variation changes as you move along the graph?
No.
Is -3x -35y equals 14 a direct variation?
no. direct variation implies that you can simplify the problem into several forma which are equivalent to y/x = k in which k is called the constant of variation. one of these equivalent forms would by y = kx + 0 (slope intercept form) in which the y intercept must be 0 rearranging your equation gives a y- intecept of -14/35 which reduces to -2/5 since this is not zero. this is not direct variation.
How does a direct variation look?
Two variables, x and y are said to be in direct variation with one another if they are related by an equation of the form y = cx where c (>0) is the constant of [direct] variation. In the coordinate plane, this equation gives rise to a straight line, through the origin, and with a gradient (slope) = c. What this means that both x and y are 0 together, and that every increase (or decrease) in x results in an increase (decrease) of c times that amount in y.
How can we tell if two lines are parallel perpendicular or neither just from their equations?
If the slope of the equations are the same then they are parallel If the slope of the equations are minus reciprocal then they are perpendicular If the slope of the equations are different then they are neither
