You can evaluate the functions separately, then add results:
.. f(3) = 2*3 +21 = 27
.. g(3) = 3 -24 = -21
(f +g)(3) = f(3) +g(3) = 27 -21 = 6
Or, you can find the combined function and evaluate that for x=3.
.. (f +g)(x) = f(x) +g(x)
.. = (2x +21) +(x -24)
.. = 3x -3
The
.. (f +g)(3) = 3*3 -3 = 6
Either way, the best choice is C) 6.
F(-1) = -6
f(0) = -5
f(1) = -4
f(2) = -3
f(5) = 0
f(8) = 3
The answer is the first one
Answer:
All real numbers
Step-by-step explanation:
5y + 4 = 5(y + 5) – 21
~Simpify right side
5y + 4 = 5y + 25 - 21
5y + 4 = 5y + 4
~Subtract 4 to both sides
5y = 5y
~Divide 5 to both sides
0 = 0
Best of Luck!
