View Full Version : Quadratic functions
steffimalcampo91
Jun 22, 2007, 09:45 PM
Find the equation of the resulting parabola when y= -2x^2+4x+1 is translated -3 units along the x-axis and 2 units along the y-axis.
Clough
Jun 23, 2007, 03:14 AM
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But, when people post questions concerning answering questions about math on this forum without providing what they think the answer is, or how they think they might arrive at the correct answer, most people on this site would think that they are asking them to do their homework for them.
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galactus
Jun 23, 2007, 11:42 AM
To shift the graph vertically, then y=f(x)+c. Where c=2
To shift left horizontally, then f(x-c). Where c=-3
To shift your graph 3 units left horizontally and 2 units upward vertically,
\underbrace{-2(x+3)^{2}+4(x+3)+1}_{\text{left horizontal}}+\overbrace{2}^{\text{upward vertical}}
Now, simplify. Then graph them both and see if it's the appropriate shifts. I think it is:) .
See how it's done now?
Hopefully, this will help you with similar problems now.