Posted by **LB** on Friday, January 4, 2013 at 7:02am.
Tell whether equation represents direct variation. If so, identify the constant of variation
1. Y=8x
Ans: yes, it represents direct variation because
its in the form Y=kx. Constant of variation: 8
2. Y=2x+1
3. 3x+y=6
Please help, not too sure if I am understanding this correctly. Completed first problem.

algebra  MathMate, Friday, January 4, 2013 at 10:41am
First problem is correct.
A direct variation will have the yintercept as zero, so it is in the form
y=kx, where k is a constant.
In other words, a direct variation is a straight line that passes through the origin.
Q2 and Q3 are not direct variations, because the yintercepts are 1 and 6 respectively.

algebra  DANNY, Tuesday, October 21, 2014 at 9:43pm
y=2x+1 yes 2x

algebra  Anonymous, Saturday, January 2, 2016 at 4:31pm
hello
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