How do you find the domain and range of $y = -2x +3$ ?

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Answer 1 · 2017-05-22T01:37:37

Domain: $(-oo,+oo)$
Range: $(-oo,+oo)$

$y=-2x+3$

$y$ is defined $forall x in RR$

Hence the domain of $y$ is $(-oo,+oo)$

$y$ has no upper or lower bounds.

Hence the range of $y$ is also $(-oo,+oo)$

These can be seen from the graph of $y$ below.

graph{-x+3 [-118.6, 118.6, -59.3, 59.4]}

How do you find the domain and range of y = -2x +3y = -2x +3?