Homework Help: algebra

Posted by Lee on Monday, October 29, 2012 at 3:17pm.

Which steps transform the graph of y=x^2 to y=-2(x-2)^2+2.
a) translate 2 units to the left translate down 2 units stretch by factor 2
b)translate 2 units to the right translate up 2 units stretch by the factor 2
c)reflect across the x-axis translate 2 units to the left translate down 2 units stretch by the factor 2
d)reflect across the x-axis translate 2 units to the right translate up 2 units stretch by the factor 2

Can someone please help me, not sure how to do this problem.

algebra - Steve, Monday, October 29, 2012 at 3:20pm
Looks like D to me

Technically, the stretching is done before the translation. Otherwise the coordinates of the vertex would also be scaled.
algebra - Lee, Monday, October 29, 2012 at 3:22pm
Okay thank you

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