My app closed for no reason can you help me in this problem

a) We have the graph of f(x) and g(x).
The function g(x) seems to be the reflection of f(x) across the x-axis.
This can be represented mathematically as:
[tex]\begin{gathered} g(x)=-1\cdot f(x) \\ g(x)=-f(x) \end{gathered}[/tex]b) In this case, h(x) is f(x) rotated 180°.
The rule for this transformation is:
[tex](x,y)\longrightarrow(-x-y)[/tex]Both the value of the function h(x) as the argument, x, change signs, so we should get:
[tex]h(x)=-f(-x)[/tex]c) In this case, j(x) is the reflection of f(x) across the y-axis.
This can be represented as a change of sign in the argument x.
Then, we can write j(x) as:
[tex]j(x)=f(-x)[/tex]Answer:
a) g(x) = -f(x)
b) h(x) = -f(-x)
c) j(x) = f(-x)