Question 56450: how do you graph f(x) = {x + 2 if x < -2 or 2x - 1 if x greater than or equal to - 2} ??
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! how do you graph
f(x) = {x + 2 if x < -2
or
f(x)=2x - 1 if x >= - 2
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Draw the coordinate system with x and y axis.
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Mark an appropriate point as x=-2
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Graph the part of the line y=x+2 that is to
the left of x=-2.
To do that find two points that are to the left
like (-5,_3) and (-3,-1).Draw a line thru those
two points stopping when you get to x=-2.
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Graph the part of the line y=2x-1 at and to the
right of x=-2. Find two points such (-2,-5)
and (0,-1). Draw a line thru them that goes no
further left than x=-2.
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That is the piecewise graph you need.
Cheers,
Stan H.
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