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Vadim26 [7]
3 years ago
8

If f(x) = x2 – 1 and g(x) = 2x – 3, what is the domain

Mathematics
1 answer:
Ainat [17]3 years ago
5 0
Begin by finding the lowest point the quadratic equation can be, the vertex; 

x²-1= is just a translation down of the graph x²

vertex; (0, -1) and since the graph of x² would extend to infinity beyond that point, we can say {x| x≥0} for domain and {y| y≥-1}. 

For the linear equation, it is possible to have all x and y values, therefore range and domain belong to all real numbers. 

Hope I helped :) 
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