Sagot :
[tex]f(x)=9-4|x+1|\\ f(-5)=9-4|-5+1|\\ f(-5)=9-4|-4|\\ Absolute\quad value\quad makes\\ the\quad numbers\quad inside\quad it\\ positive,\quad so\\ f(-5)=9-4\cdot 4\\ f(-5)=9-16\\ f(-5)=-7[/tex]
[tex]f(-5)=9-4|-5+1|\\
f(-5)=9-4|-4|\\
f(-5)=9-4\cdot4\\
f(-5)=9-16\\
f(-5)=-7[/tex]