SOLUTION: Write a direct variation equation that has (3,11) as a solution. Then find y when x=12.

Question 119965This question is from textbook Algebra 1
: Write a direct variation equation that has (3,11) as a solution. Then find y when x=12. This question is from textbook Algebra 1

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Write a direct variation equation that has (3,11) as a solution. Then find y when x=12.
:
y = k*x
or
kx = y
:
Substitute 3 for x and 11 for y and find k
3k = 11
k =
;
Now we have: y = x, as our equation
:
Find y when x = 12
y = *12
y = 11*4; cancel out the denominator
y = 44, when x = 12
:
How about this? Did I make it understandable to you?
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