Surely your teacher explained the meaning of those symbols...
ℜ is the set of real numbers
x ϵ ℜ means - x is an element of ℜ. That is, x is a real number.
How do i graph the nonlinear relation with the domain and range?
also what does ϵ mean and ℜ? also is there a online calculator i can use for this my teacher said we can use one to graph.
Domain: x ϵ ℜ
Range: y >= -2, y ϵ ℜ
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