Evaluate fx 2x 6 for x 2 fx 5x 10 for x 2Solution1 fx

Evaluate f(x) = -2|x| -6 for x = -2 f(x) = 5x - 10 for x = -2

1. f(x) = - 2|x | - 6, for x = - 2

Substitude x = -2 in f(x), we get

f(-2) = - 2|-2 | - 6

= -2 ( -2) - 6 since | -x | = x

= 4 - 6 = -2

Thus, f ( -2) = -2

2. f(x) = 5x - 10, x =-2

Plug x = -2 in f(x), we get

f ( -2) = 5 ( -2) - 10 = -10 - 10 = -20

Thus, f ( -2) = - 20