Diberikan fungsi f:x ➡ x+3:x nilai f (8) -f(4)adalah

[tex]f(8) = \frac{8 + 3}{8} = \frac{11}{8} [/tex]
[tex]f(4) = \frac{4 + 3}{4} = \frac{7}{4} [/tex]
[tex] \frac{11}{8} - \frac{7}{4} = \frac{11 - 14}{8} = \frac{ - 3}{8} [/tex]