Question

considerando a função f(x) -2x+10, se x<0, 2x+10, se x_>0 calcule os seguintes valores: f(1), f(-2), f(-3) +F(3)

Answer 1

$f(x) = -2x+10\\\\f(1) = -2*1+10 \\f(1) = -2 + 10\\f(1) = 8\\\\f(-2) = -2*(-2)+10\\f(-2) = 4+10\\f(-2) = 14\\\\f(-3) = -2*(-3)+10\\f(-3) = 6+10\\f(-3) = 16\\\\f(3) = -2*3+10\\f(3) = -6+10\\f(3) = 4\\\\s = f(-3) + f(3)\\s = 16 +4\\s = 20$