Final answer:
A) 29. To find f(8) for the function f(x)=3x+5, you substitute 8 in for x, multiply by 3, and then add 5, which results in 29, corresponding to option A.
Step-by-step explanation:
The student has asked to find the value of the function f(x) = 3x + 5 when x is equal to 8. To do this, we simply substitute the value of x into the function:
f(8) = 3(8) + 5
First, we multiply 3 by 8 to get 24.
3 × 8 = 24
Next, we add 5 to 24 to get the final result.
24 + 5 = 29
Therefore, the value of f(8) is 29, which corresponds to option A.