Plug in -5 for x
f(-5) = -9(-5) + 3
Simplify
-9 x -5 = 45
45 + 3 = 48
f(-5) = 48
hope this helps
Put the value of x = -5 to the equation of the function:
[tex]f(x)=-9x+3\to f(-5)=(-9)(-5)+3=45+3=48[/tex]
Answer: f(-5) = 48.
