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Identifying Direct Variations from Equations. Tell whether each equation represents a direct variation. If so, identify the constant of variation. Example 1 : y = 4x.

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Example 3: y varies directly with x. If x = 25 when y = 5, then what is y when x = 8 ? What's the constant of variation? y=kx yeket. 5=k(25) k=ţ , sy=&* y = $(8).

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Apr 22, 2020 ... Then we can use that equation to find values of y for other values of x. Example 8.86. How to Solve Direct Variation Problems.

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direct variation a relationship between two variables in which the ratio between the two variables is a constant. Example 1: Determining a relationship between ...

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the slope is also called the constant of variation. Example 1. The amount of money spent at the gas station varies directly with the number of gallons purchased.

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Sign up. Existing user? Log in. Direct Variation. Recommended courses and practice. Quiz. Direct Variation ... Example Problems. If y y y varies directly as x , x , ...

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(See Example 5.) 8- 1 Variation ... A direct variation equation is a linear equation in the form y = mx + b, where b = 0 and the constant of variation k is the slope.

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Example 9. If y varies directly as x and y = 15 when x = 5, find the formula connecting x and y. Hence find y when x ...

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the relationship between two quantities whose ratio remains constant. • one variable "varies directly" in line with the other. EXAMPLES: direct proportion, direct ...

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(See Examples 1–2). The circumference C of a circle varies directly as its radius r . EXAMPLE 1 Writing ...