The graph of y = x^2 - 1 has a vertex at (0,-1) and open upwards and it is represented by the graph 1
How to determine the graph of the function?
The equation is given as:
y = x^2 - 1
Express as a vertex function
y = (x - 0)^2 - 1
The above means that the function has a vertex of (0,-1) and it opens upward
The graph that has a vertex at (0,-1) and open upwards is the graph 1
Hence, the graph of y = x^2 - 1 is (a)
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