SOLUTION: Over what interval is the following piecewise function increasing?
{-1-x for x<-2
f(x) {3x+7 for -2less than/equal to x less than/equal to -1
{ 1 for x >
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Question 54176: Over what interval is the following piecewise function increasing?
{-1-x for x<-2
f(x) {3x+7 for -2less than/equal to x less than/equal to -1
{ 1 for x > -1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Over what interval is the following piecewise function increasing?
1st Part:{-1-x for x<-2
The slope is -1 so it's not increasing.
-----------
2nd Part: f(x) {3x+7 for -2less than/equal to x less than/equal to -1
The slope is 3 so it is increasing on the closed interval [-2,-1]
-----------------
3rd Part: { 1 for x > -1
The slope is zero so it's not increasing.
Cheers,
Stan H.
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