Final answer:
The y-intercept is 0.
Step-by-step explanation:
The equation of a line with a slope m and a y-intercept b is given by the formula y = mx + b. In this case, the slope m is given as 2, and the line passes through the point (5, 10).
To find the y-intercept, we can substitute the given values into the equation and solve for b.
Using the equation y = mx + b and substituting m = 2 and the coordinates (x, y) = (5, 10), we have 10 = 2(5) + b. Simplifying this equation, we get 10 = 10 + b.
Subtracting 10 from both sides, we find b = 0.
Therefore, the y-intercept is 0.