Question

Is `3y-7=10x` a direct variation equation and if so what is the constant?

Answer 1

No

Explanation:

Given: `3y - 7 = 10x`

Direct Variation: `" "y = kx`

If the given equation was `3y = 10x` it would be a direct variation equation. The `-7` changes eliminates it.

For `3y = 10x; " "y = 10/3 x; " " k = 10/3`

Conclusion: `3y - 7 = 10x` is not a direct variation.