To determine the possible outputs (range values) for the cost function \( C = 50x \), we need to consider the function's behavior based on the input (number of participants \( x \)).
- Since \( x \) (the number of participants) must be a non-negative integer (you cannot have a negative or fractional number of participants), the smallest valid input is \( x = 0 \), which gives \( C = 50(0) = 0 \).
- The outputs will increase in increments of $50 for each additional participant:
- For \( x = 1 \), \( C = 50(1) = 50 \).
- For \( x = 2 \), \( C = 50(2) = 100 \).
- For \( x = 3 \), \( C = 50(3) = 150 \), and so on.
Based on these considerations, the possible outputs from the given options (80, 50, 0, 150, 210) can be evaluated:
-
0: Valid output because it corresponds to \( x = 0 \).
-
50: Valid output because it corresponds to \( x = 1 \).
-
150: Valid output because it corresponds to \( x = 3 \).
-
80: Not a valid output because there is no integer value of \( x \) such that \( C = 80 \) (since \( C \) increases in increments of $50).
-
210: Not a valid output because there is no integer value of \( x \) such that \( C = 210 \) (the closest values are 200 and 250).
Summary of Valid Outputs:
-
Valid Outputs (Range values): 0, 50, 150
-
Reason: These outputs correspond to non-negative integer values for \( x \) according to the function \( C = 50x \).