High School

Which two expressions are equivalent to [tex]f(4 + 5)[/tex]? Select all that apply.

A. [tex]2[/tex]
B. [tex]20f[/tex]
C. [tex]44 + 5[/tex]
D. [tex]9f[/tex]

Answer :

Final answer:

To find the equivalent expressions to f(4 + 5), substitute 4 + 5 into the function f. The equivalent expressions are 44 + 5, which simplifies to 49.

Explanation:

To find the equivalent expressions to f(4 + 5), we can substitute the expression 4 + 5 into the function f. This gives us:

f(4 + 5) = f(9)

Therefore, the equivalent expressions are:

  1. a. 2: This expression is not equivalent to f(4 + 5).
  2. b. 20f: This expression is not equivalent to f(4 + 5) as it includes the variable f.
  3. c. 44 + 5: This expression is equivalent to f(4 + 5) as it simplifies to 49.
  4. d. 97 + 4f + 5f: This expression is not equivalent to f(4 + 5) as it includes the variables f.