Question

1. select the line of code that correctly stores 18 into the (13, 0) position on a grid represented by a two - dimensional array?

twodimensionalarray0.append(18)
twodimensionalarray(0,13) = 18
twodimensionalarray.append(18)
twodimensionalarray013 = 18
twodimensionalarray013.append(18)
twodimensionalarray0,13 = 18

1. which of the following is an example of a 2x3 two - dimensional array?

x = 1,2,3,1,2,3
x = 1,2
y = 1,2,3
x = 1,2,3,1,2,3
x = 1,2,3
y = 1,2,3

1. which of the following lines of code will print the value of the top, left corner of a 3x3 two - dimensional array.

print(twodimensionalarray0,0)
print(twodimensionalarray00)
print(twodimensionalarray1,1)
print(twodimensionalarray11)

Explanation:

Step1: Analyze two - dimensional array indexing

In most programming languages, to access an element in a two - dimensional array twoDimensionalArray, we use twoDimensionalArray[row][column] syntax for assignment or retrieval. For the position (13, 0), assuming 0 - based indexing, we should use twoDimensionalArray[0][13] = 18.

Step2: Analyze 2x3 two - dimensional array representation

A 2x3 two - dimensional array is an array with 2 rows and 3 columns. In Python (assuming similar syntax in other languages with arrays), it is represented as x = [[1,2,3],[1,2,3]] where the outer list represents rows and inner lists represent columns.

Step3: Analyze accessing top - left element

The top - left element of a 3x3 two - dimensional array (with 0 - based indexing) is at position (0, 0) and is accessed as twoDimensionalArray[0][0] in code for printing.

Answer:

1. twoDimensionalArray[0][13] = 18
2. x = [[1,2,3],[1,2,3]]
3. print(twoDimensionalArray[0][0])