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anonymous
 one year ago
Identify the graph f'(x) from the graph f(x)?
(posting picture below)
anonymous
 one year ago
Identify the graph f'(x) from the graph f(x)? (posting picture below)

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I just need help with #42

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1On the right side of x=0, notice that it's simply the line y=x. It has a constant slope of m=1. So our derivative function should be a constant value. y'=1 for x>0

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Which is a horizontal line.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So you're just matching the slopes?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Ya the derivative function gets its value from the slope of the function at every point. If that makes sense :o

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Yes, you're matching what the slope is doing, with a new shape.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, so that's why 39 and 42 have the same answer. That makes sense.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.142 is not the same! :) close though

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1I only drew half of the function.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Notice that in 39, the slope stays the same everywhere, it's just a straight line. The slope is constant m=1 everywhere. So the derivative function will be a constant f'=1 everywhere. In 42, we still have to deal with the other side of the V. Notice that it's a different line segment. This line has negative slope, see how it's tilted down?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Since x=1 on one side and x=1 on the other

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you! This makes more sense now.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1I'm still confused why these guys were posting x^2 lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I dunno. Maybe they were thinking about the type of graph rather than the slope?
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