Unit 2 Test (Functions Python Review)

• llama

  llama

  llama

• llama llama llama

• llama, llama, llama

• No output due to an error

Answer explanation

Commas add a space and one print statement will print sideways on the same line.

• 120

• 120.0

• 15

• No output due to an error

Answer explanation

When the function is called, the inputs are 4, 5, and 6. The function tells us to multiply them together. Which yields 120. No decimal point since no single slash division was taking place.

• 1.667

• 2.0

• 1

• No output due to an error

Answer explanation

When function is called, be careful of the order of the inputs. DeltaX and then Delta Y so the inputs are 6 and 10.0 respectively. And then we divide Deltay by DeltaX. Which yields 1.667.

• 25.0

• 25

• 10

• 10.0

• No output due to an error

Answer explanation

This function takes in an input and returns that input times itself (squared). The input is 5 when called, so the returned answer is 25.

• x is

  1

  and y is

  2

• x is, 1, and y is, 2

• x is 1 and y is 2

• x is1and y is2

• No ouptut due to an error

Answer explanation

Commas add a space when connecting pieces of the print statement. One print statement prints sideways on one line.

• 17.0

• 17

• 42.0

• 42

• No output due to an error

Answer explanation

Remember order of operations. a/b yields 5.0. And c*d yields 12. 5.0+12 in the end is 17.0. The single slash division gives you a decimal, and it stays with the problem until the end.

• 27.65

• -27.65

• 0.49

• .65

• No output due to an error.

Answer explanation

The function is called, but the no inputs are within the parentheses. Despite us knowing what is going on, python does not and doesn't relate outside variables to the function unless typed in as inputs. getChange(price, paid) would give us our intended answer.

• The result is -4.0

• The result is 4

• The result is -4

• The result is 4.0

• No output due to an error.

Answer explanation

The composition here occurs since when we call g(x) the input is 100, but the instructions for function g say to use function f with our input. So we go to function f first and use our input to calculate 100/20 which is 5.0. Taking that back to function g, 5.0 - 9 = 4.0.

• 5

• 6

• 5.0

• 6.0

• No output due to an error

Answer explanation

m**2 would be 1 squared. n**2 would be 2 squared. 1 + 4 is 5.

• 341.0

• 352.0

• -341.0

• -352.0

• No output due to error.

Answer explanation

f(x) yields 11.0. g(x) yields 352. And then we subtract those to get 341.0.