Thursday

April 24, 2014

April 24, 2014

Posted by **Anonymous** on Thursday, September 29, 2011 at 1:13pm.

Write an inverse variation equation. If y varies inversely with x and y=2 when x=4….

a. Find K.

b. Write a general equation.

c. Use your equation to find y when x=8

Draw a chart to show at least 5 ordered pairs that are on the graph. (Hint: don’t pick all positive numbers)

x- y-

- algebra -
**Steve**, Thursday, September 29, 2011 at 3:09pmSince you know about k, you must surely have grasped the idea that if y varies directly with x, then

y = kx

You know that y=2 when x=4, so

2 = k*4

k=1/2

... the rest should be easy. Just use your fancy new equation.

y = x/2

8/2 = 4, so y=4 when x=8

x: -21 -3.4 0 π 6

y: -21/2 -1.7 0 π/2 3

**Related Questions**

chemistry - This is confusing. I am supposed to explain how to prepare a ...

math 12 logarithms - I need to express log base 5 sqrt5 =0.5 in exponential form...

Algebra - How do I graph how to raph -y>=4/3 (greater than or equal to) I don...

calculus - really stuck on these two, steps would be greatly appreciated. gotta ...

Algebra 1 - How do you graph the function: y = 6x(squared) - 12x + 1 Then, how ...

Algebra II - Find the accumulated value of an investment of $3000 at 9% ...

English - Some people can have really bad traits such as being dishonest, mean, ...

Fin 200 Intro to Finance - I am having trouble with week 1 assignment, to create...

Algebra, explain how to please - Can someone explain to me how to solve -14=2/5(...

Algebra II - How would you go about doing this problem? I've tried and with the ...