Hi, the correct answer is given in red which helps you to explain . please explain the formula and the graph if you can provide one step by step , then the rest of the questions thanks a lot!

Q10. Depreciation. Suppose that there was no depreciation of capital. How would this affect... [a] ...the levels of the capital stock and production? The long run levels of the capital stock and production would be higher. [b] ...the growth rates of the capital stock and production? The longrun growth rates of the capital stock and production would be unaffected. They would still grow at the same rate as the effective workers: 9 + n