how do you calculate zero of a function given a graph?

Question

turingtest · Answer

If you are looking at a graph then you are looking for points where y=0,
that is, where the line of the graph crosses the x-axis

anonymous · Answer

oh thanx so much!

anonymous · Answer

depends on the functions

anonymous · Answer

is it linear or second degree

anonymous · Answer

linear

turingtest · Answer

No my answer holds for those two assuming your graph is good enough.

anonymous · Answer

yah... i submitted it... still got it wrong

turingtest · Answer

Submitted? so you have two type in an answer? and you'r not given the function?

anonymous · Answer

its ok tho... it was for a school eCART. that wuz the only one tho :)

anonymous · Answer

no multiple choice

turingtest · Answer

Oh, well it may have helped to know the choices.

amistre64 · Answer

you cant calculate with a graph, you can only approximate

anonymous · Answer

Yah... i coul've attached the file

anonymous · Answer

didn't think of that until i discovered the tools

anonymous · Answer

but i had already submitted it

anonymous · Answer

:(

turingtest · Answer

Well, you could just type in the choices by hand in the future. But yeah, I don't think I could have phrased the answer in the same way as the multiple choice. However it's good to note that amistre is right, you can only approximate with a graph, not calculate. That's why I said "if your graph is good enough".