source : allnswers.com

## What is the constant of variation, k, of the direct variation, y = kx, through (5, 8)? k = – k equals negative startfraction 8 over

The value of constant of variation “k” is

Solution:

Given that the direct variation is:

y = kx —– eqn 1

Where “k” is the constant of variation

Given that the point is (5, 8)

To find the value of “k” , substitute (x, y) = (5, 8) in eqn 1

Thus the value of constant of variation “k” is

Direct Variation – Algebra | Socratic – Direct Variation. If yy. is directly proportional to xx. , then we can write. y=kxy=kx. , where kk. is the constant of proportionality. How do you find the constant of variation, and write an equation of direct variation that relates the two variables y= -10, for x=2?i know thay y=kx and y/x=k but what is the constant of variation and how do you find it? Go back to your notes. y = kx lets say you put 5 in as k so…Direct Variation. Identify and solve y=kx form equations. % Progress. MEMORY METER. Direct Variation. Suppose a person's annual salary is directly proportional to the number of years he or she has spent in What do you think this means? Could you determine the constant of proportionality?

what is the constant of variation? | Yahoo Answers – Then the resultant force on B is directed What is the direction of the velocity of a negative charge that experiences the magnetic force shown in the Figure, assuming it moves perpendicular to B?Here are the steps required for Solving Direct Variation Problems: Step 1 Use the information given in the problem to find the value of k, called the constant of variation or the constant of proportionality. Direct variation problems are solved using the equation y = kx.Variation problems aren't hard once you get the hang of the lingo. The only real difficulty is learning the somewhat specialized vocabulary and the techniques for this classification of problems. Variation problems involve fairly simple relationships or formulas, involving one variable being equal to one term.

Direct Variation ( Read ) | Algebra | CK-12 Foundation – ½ is the constant of variation. Identifying a Direct Variation from an Equation Tell whether each equation represents a direct variation. Yes, the line passes through the origin, so this is a direct variation. • What is the constant of variation? k = -½ Does this graph represent a direct variation? •Direct Variation (also known as Direct Proportion). The concept of direct variation is summarized by the equation below. We say that katex is not If we isolate katex is not defined on one side, it reveals that katex is not defined is the constant ratio between katex is not defined and katex is not defined.For example, direct variation is y = kx and indirect variation would be y = k/x . 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…