Thank you so much for the answer. It's really helpful. Do you mind let me
know how to draw multiple equations in the same chat? For example, I want to
draw Y=400+10x + x^2, and equation y=100-10x, and equation y=10 in the same
chat. Very much appriaciate your help.

Anne

"Anne" wrote:

I am using equation very often these days. How can I draw the chat by
entering these equations(linear or non-linear)? For example, can I draw the
linear line in the xy chat by input "y=10+3x", in any environment of office?
If I can not do so in MS office, anyone know which software can help? Thank
you so much.