Question

the program is supposed to evaluate ( d=(a + 5)+z(a + 4) ). the test input is ( a = 3 ).
( d=(a + 5)+2*a + 4 )
print(d)
which statement is true?
the expected output is 22, the actual output is 22, and the test case fails.
the expected output is 22, the actual output is 18, and the test case passes.
the expected output is 22, the actual output is 18, and the test case fails.
the expected output is 22, the actual output is 22, and the test case passes.

Explanation:

Step1: Calculate Expected Output

The intended formula is \( D=(A + 5)+2(A + 4) \). Substitute \( A = 3 \):

$$
LATEXBLOCK0
$$

Step2: Calculate Actual Output

The program's formula is \( D=(A + 5)+2^{*}A + 4 \). Substitute \( A = 3 \):

$$
LATEXBLOCK1
$$

Step3: Determine Test Result

Expected output is 22, actual is 18. Since they differ, the test case fails.

Answer:

The expected output is 22, the actual output is 18, and the test case fails. (Corresponding option: The expected output is 22, the actual output is 18, and the test case fails.)