Question

Determine f(4) for the function f(x)=2/5x+11​

Answer 1

Answer:

63/5 in improper form and 12 and 3/5 in mixed form

Step-by-step explanation:

f(x) = 2/5x + 11

Substitute in value of x for the equation

f(4) = 2/5(4) + 11

f(4) = 8/5 + 11

f(4) = 8/5 + 55/5

f(4) = 63/5 or 12 and 3/5

So, the answer should be 63/5 in improper form and 12 and 3/5 in mixed form.

Answer 2

Answer:

Step-by-step explanation:

f(x) = $\frac{2}{5}x + 11$

f(4) = $\frac{2}{5}*4 +11$

     $=\frac{8}{5}+11\\\\=\frac{8}{5}+\frac{11*5}{1*5}\\\\=\frac{8}{5} + \frac{55}{5}\\\\=\frac{63}{5}\\\\=12\frac{3}{5}$