+0

# Functions

0
1
43
3
+6

Let $$f(x) = \left\{ \begin{array}{cl} -x + 3 & \text{if } x \le 0, \\ 2x - 5 & \text{if } x > 0. \end{array} \right.$$

How many solutions does the equation  f(f(x) have?

Nov 19, 2021

#1
0

Graphing, the equation f(f(x)) = 4 only has the solution x = 2.  So the answer is 1 solution.

Nov 19, 2021
#2
+6
0

I'm sorry i mistiped I meant to say: How many solutions does the equation f(f(x))=6 have???

Nov 19, 2021
#3
+115358
+1

See if you can make sense of this pic

Nov 19, 2021