# algebra

posted by .

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

• algebra -

First problem is correct.
A direct variation will have the y-intercept 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 y-intercepts are 1 and 6 respectively.

• algebra -

y=2x+1 yes 2x

• algebra -

hello

## Similar Questions

1. ### Math

I am doing Direct Variation in math. I don't understand how to do it. It would be very helpful if you helped me with these problems: Is each equation a direct Variation?
2. ### direct variation or neither

Tell whether the equation represents direct variation or neither, 7=3x+2 represents A) represents inverse variation B) represents direct variation C) represents neither.
3. ### algebra

Tell whether equation represents direct variation. If so, identify the constant of variation
4. ### Math- steve or ms. sue

does the data in the table represent a direct variation or an inverse variation?
5. ### Algebra 2

Is the relationship between the variables in the table a direct variation, an inverse variation, both, or neither?
6. ### Math

Is -12x = 6y a direct variation? If so what is the constant of variation. My answer is yes it is a direct variation and the constant of variation is -2 but I want to make sure. Please help
7. ### Algebra 2 Honors

Hey, we recently started a topic in class that I don't understand well, I just want to post 6 of the problems and ask if they're right or not (some of them I have no idea how to do). 1. If a varies directly as b and b = 18 when a = …
8. ### Algebra worksheet

Hello. My algebra teacher gave me this worksheet last week and everyone had to bring it yesterday and I haven't done it yet. Can someone please help me. He said Friday is the last day or he's going to take away some points. I've been …
9. ### math

Is the relationship between the variables in the table direct variation, inverse variation, both, or neither?
10. ### Math

-8y = 2x -7 +9y +7= 2x Determine whether each equation represents a direct variation. If it does, find the constant of variation.

More Similar Questions