(f o g)(x)
g(x) = x + 2
Since it’s telling you to use g(x), you use (x + 2) as your new x value for function f.
f(x + 2) = 5(x + 2) + 5
= 5x + 10 + 5
= 5x + 15
17=5k-2
add 2 to both sides
19=5k
divide both sides by 5
19/5=k
19/5=3 and 4/5
Part A: 3x + 15 = 5x - 25
Part B: x = 20
The answer is B because it is at -4 then increases 4 so now it is 0 degrees .
I’m pretty sure the average rate is 2 sorry if I’m wrong have a gre day