Bonjour,
[tex]3) \: f(x) = \frac{3}{5} x[/tex]
[tex]f(0) = \frac{3}{5} \times 0 = 0[/tex]
[tex]f(1) = \frac{3}{5} \times 1 = \frac{3}{5} [/tex]
[tex]f(2) = \frac{3}{5} \times 2 = \frac{6}{5} [/tex]
[tex]f(3) = \frac{3}{5} \times 3 = \frac{9}{5} [/tex]
[tex]f(4) = \frac{3}{5} \times 4 = \frac{12}{5} [/tex]
[tex]f(5) = \frac{3}{5} \times 5 = 3[/tex]
[tex]4) \: f(2.5) = \frac{3}{5} \times 2.5 = 1.5[/tex]
pour x = 5 , ED mesure 1,5 cm
