Solve the problem or provide an explanation.Graph y = x2 - 6x - 7 and f(x) = 
together on your graphing calculator. State the domain of f(x), and explain the connection between the domain of f(x) and the graph of 
A. The domain of 
The domain of f(x) is the set of all x-values for which the graph of 
is on or above the x-axis.
B. The domain of f(x) is [-1, 7). The domain of f(x) is the set of all x-values for which the graph of 
is on or below the x-axis.
C. The domain of f(x) is ?. There is no connection between the domain of f(x) and the graph of y = x2 - 6x - 7.
D. The domain of f(x) is (-?, ?). The domain of f(x) is the same as the domain of 
Answer: A
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