Homework Help: pre-calculus

Posted by aelisha on Friday, October 3, 2008 at 10:51pm.

is the function of

f(x)=x^2-4x

even, odd, or neither?

oh and on what intervals is the function of

f(x)=|x+1|+|x-1|

increasing?

pre-calculus - Reiny, Friday, October 3, 2008 at 11:17pm
for the first one, why not graph the parabola ?
hint: it has x-intercepts of (0,) and (4,0)

now check in your textbook or notebook what it says about even and odd functions in relation to their graphs.

for the second, I suggest you make a table of values, graph it, and draw your conclusion from that.

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