Homework Help: pre calc

Posted by si on Tuesday, September 11, 2012 at 11:54pm.

the graph of y=-1/2 x+5 +3 can be obtained from the graph of y= x by which transformations
what is the horizontal shift
by what factor is the graph stretched or shrunk vertically and how is it reflected

pre calc - Steve, Wednesday, September 12, 2012 at 11:29am
Assuming you meant -1/2 (x+5) + 3,

starting with y = x
shrink by a factor of 2 to get
y = 1/2 x
reflect through x-axis to get
y = -1/2 x
shift left 5 units to get
y = -1/2 (x + 5)
shift up 3 units to get
y = -1/2 (x+5) + 3

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