The equation of the line which contains every point of the form (x, 2x + 3) is:

1. Every point on the line is given as (x, 2x + 3), so the y-coordinate equals 2x + 3 for any chosen x. 2. Writing this as a relation: y = 2x + 3. 3. So the line's equation is y = 2x + 3. 4. Verify with two values: x = 0 gives (0, 3); x = 1 gives (1, 5). Both satisfy y = 2x + 3. 5. So y = 2x + 3 is the equation. _Source: SCERT Kerala Std X Mathematics Part-2, Chapter 9-11 (pp 227-246, 2019 ed.)._