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what is cos(0)

its 1

yea so that means \[\cos x \neq x=0\]

do you mean cos(x) doesn't equal x when x = 0?

yea because at x its 0 and at x<0 its 1

then you are correct, and this shows us that there is a discontinuity

alright kool thanks and does the graph looks like this?|dw:1348180882506:dw|

you're on the right track

however, you only graph cos(x) when x < 0

and you only graph 1 - x^2 when x > 0

make sure you draw a hole at (0,1) and a closed circle at (0,0)

|dw:1348181069990:dw| like this?

|dw:1348181225073:dw|

good, you got it

alright thanks for ur help!