Final answer:
To find the value of f(x) when g(x + 10) = 20, substitute x + 10 into the function g(x) and solve for x. Then, substitute x = 20 into the function f(x) to find the value of f(x).
Step-by-step explanation:
In the given table, we are given the values for two continuous linear functions, f(x) and g(x). To find the value of f(x) when g(x + 10) = 20, we need to substitute x + 10 into the function g(x) and solve for x. From the table, we see that g(x + 10) = 15, so x + 10 = 30. Solving for x, we get x = 20. Now, we can find the value of f(x) by substituting x = 20 into the function f(x). From the table, we see that f(x) = 13 when x = 10. We can assume that the function is continuous between x = 10 and x = 20, so the value of f(x) when x = 20 would be the same as when x = 10, which is 13.