Question

which equation represents a direct variation?

\\(y = 2^x\\)

\\(y = \frac{3}{x}\\)

\\(y = x + 4\\)

\\(y = \frac{1}{2}x\\)

Explanation:

Identify the definition of direct variation

$$ y = kx \quad (k eq 0) $$

Analyze the given options

$$
LATEXBLOCK0
$$

Answer:

• \(y = 2^x\)
• \(y = \frac{3}{x}\)
• \(y = x + 4\)
• \(y = \frac{1}{2}x\) (Correct answer)