A graph of three functions

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Question:

A graph of three functions, f (x) = x + 6 in red, k f (x) in blue, and f (hx) in green. Determine the values of h and k.

Answer:

K f (x)                3                          1
_______ = K = _______  —-> K =________

f (x)                    6                          2

Part 2: 

f (hx) = 8 (x) = hx+6

Part 3: 

8 (-3) = h (-3) + 6 = 0 —-> – 3h+6 = 0 —-> -3h = -6 

Part 4:

         – 6  
h = ________   = 2

         – 3

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