Question

Qual o valor de f(7) e f(8) na função f (x) = |2x-6|-5

Answer 1

$f(x)=|2x-6|-5\\\\\\ f(7)=|2.7-6|-5\\\\ f(7)=|14-6|-5\\\\ f(7)=|8|-5\\\\ f(7)=8-5\\\\ f(7)=3\\\\\\ f(8)=|2.8-6|-5\\\\ f(8)=|16-6|-5\\\\ f(8)=|10|-5\\\\ f(8)=10-5\\\\ f(8)=5$