Understanding Function Notations

What is the result of substituting x = 3 into the function f(x) = 6 - 4x?

• -6

• 0

• 6

• 12

When substituting a negative value, such as x = -8, into the function f(x) = 6 - 4x, what is the result?

• 32

• 38

• -38

• -32

How does the function f(x) = 6 - 4x handle a fractional input like x = -2/5?

• 6 + 8/5

• 6 - 8/5

• 7.6

• 7 3/5

What is the simplified improper fraction form of the result when x = -2/5 is substituted into f(x) = 6 - 4x?

• 38/5

• 6 3/5

• 8/5

• 7 3/5

What is the mixed number form of the result when x = -2/5 is substituted into f(x) = 6 - 4x?

• 6 3/5

• 8/5

• 7.6

• 7 3/5