#How do I know if the Y of -2 <x < 1 is positive/negative?
10 messages · Page 1 of 1 (latest)
by graph, or use wavy curve method
by plotting the points on number line
do you want to use graph?
or no?
do you know wavy curve method?
yes you can do that
absolutely
but a tedious method
no problem, use whatever you are comfortable with unless the question states a particular method.