Hey guys can you please help me with these two problems? I just do not understand how to do them, I don't know where to begin!
Find each value if g(x) = 2x + 3 and h(x) = x/2-7
Find: G(9)
Find: H(4)
This type of problem is an exercise in substituting a value (such as 9) for a variable (such as x).
1. Find: G(9) if G(x) = 2x + 3
we replace x with 9 in the above equation so:
G(9) = 2*9+3 .........|replace x with 9
G(9) = 18+3 ...........|multiplacation before addition (PEMDAS)
G(9) = 21
Try to do the second one here as a reply and I will correct you.