Question

F(x)=-2|x|-3 find: f(-3) and find: -2f(x)


PLEASE HELP!

Answer 1

See below in bold.

Explanation:

f(x)=-2|x|-3

To get f(-3) we substitute -3 for x

= -2|-3| - 3 <--- Note |-3| means the absolute value of -3 which is 3.

= -2*3 - 3

= - 9.

-2 f(x) = -2 * (-2|x| - 3)

= 4|x| + 6.