Posted by joclyn on Thursday, September 17, 2009 at 1:10pm.
I posted this question yesterday and I got a response that is correct but I still don't understand how he got it. What did he do with the 2?
how do i find the slope of the curve at the indicated point?
f(x)= absolute value of x, x=2
math - bobpursley, Wednesday, September 16, 2009 at 7:50pm
at x=2, abs(x)= x
- math - Reiny, Thursday, September 17, 2009 at 1:29pm
f(x) = │x│
y = │x│
resulting in two linear functions
y = x , y = -x , where y ≥ 0
the graph will be a V-shape with the vertex at the origin.
here are a couple of ordered pairs,
for x>0, (1,1),(3,3),.. (12,12) etc
for x< 0
so for x>0 the slope is +1
for x<0 the slope is -1
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