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If y varies directly as x then k = 2.

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Q: What is the constant of variation k if x .5 and y 1 Assume y varies directly as x?
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Related questions

A varies directly as b and a equals 12 when b equals 4 What is the constant of variation?

a varies directly as b and a = 12 when b = 4. What is the constant of variation?


The area of a circle varies directly as the square of the length of its diameter What is the constant of variation?

pi


How are direct variation and joint variation related?

Both are variations of certain kinds of equations. X=kY is a direct variation since X varies directly as Y and k is the constant of variation. X=k/Y is an inverse variation where X varies inversly as Y and k is the constant of variation. Both of these variations are also functions.


What is the difference between direct variation and inverse variation?

Direct variation is the ratio of two variable is constant. Inverse variation is when the product of two variable is constant. For example, direct variation is y = kx and indirect variation would be y = k/x .


What is the constant of variation if y varies directly with x and if y equals 500 when x equals 10?

50


If y varies directly with x and y is 42 when x is 4 what is the constant of variation expressed in decimal form?

k = 10.5


Is 2x plus 3y equals 0 a direct variation?

Direct variation refers to two variable quantities have a constant (unchanged) ratio, in which a variable "varies directly with the other."In order to have a direct variation, the constant of variation must be not equal to 0 in the equation y=kx, where k is the constant.When you try to put 2x+3y=0 into that formula (y= form), you get:2x+3y=03y=-2x ;Subtract the 2xy=(-2/3)x ;Divide by 3Your constant of variation is -2/3, and since it is less than 0, it is does variate directly. Therefore, y varies directly as x.


How would you go about solving this direct variation question and what is the answer- If P varies directly as the square of Q and the constant of variation is 6 what is the value of P when Q equals 12?

If P varies directly with the square of Q then the equation would be in the form of P = kQ2, where k is the constant of variation so the new equation would be: P = 6Q2, so when Q = 12 we have P=6*122, or P = 864


Is the problem y equals 3x a direct variation if so what is the constant of variation?

y=3x is a direct variation in that y varies directly with x by a factor of 3. Any linear equation (a polynomial of degree 1, which is a polynomial equation with a highest exponent of 1), is a direct variation of y to x by some constant, and this constant is simply the coefficient of the "x" term. Other examples: y=(1/2)x is a direct variation, and the constant of variation is 1/2 y=-9x is a direct variation, and the constant of variation is -9


F x varies directly with x and y equals -2 when x equals 8 Find the constant of variation k?

What is y? Fx varies with x, but y could be anything.


If you travel at a constant speed and the distance you travel varies directly with your travel timeSuppose in 1.5 hours you can walk 5 miles What is the costant of variation and how did you find this?

You divide the number of miles traveled by the number of hours and the result - the constant of variation - is 3.66 (recurring) miles per hour.


Assume that y varies inversely with x and that y is 2 when x is 4 what is the equation of inverse variation?

2=8/4 the constant is 8 y-k/x i think.