please please help me!

sobi

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Joined
Sep 9, 2005
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4
hey can anyone solve this for me

In these questions, sketch a graph using transformation on y = x^2

(a) y = (x-3)^2

(b) y = -3(x+1)^2+2


Thanks in advance :cry:
 
You've graphed "f(x) = y = x<sup>2</sup>". You've got your list of transformation rules, that looks something like this:

. . . . .f(x) + m is f(x) shifted m units up
. . . . .f(x) - m is f(x) shifted m units down
. . . . .f(x + m) is f(x) shifted m units left
. . . . .f(x - m) is f(x) shifted m units right
. . . . .-f(x) is f(x) flipped upside-down over the x-axis
. . . . .f(-x) is f(x) rotated around the y-axis
. . . . .af(x) is f(x) skinnier (for |a| > 1) or fatter (for |a| < 1)

a) You have f(x - 3). Which rule do you apply? So what does the graph look like?

b) You have -3f(x + 1) + 2. Which rules do you apply? What does the graph look like?

Eliz.
 
hello

hello thanks for your help...i have another math question..

Points (-2, 4), (0, 0) and (2, 4) are on the parabola y = x^2. Use your knowledge of transformations to determine the equation of the parabola using these coordinates.

(a) (2, 4), (4, 0), (6, 4)

ANOTHER QUESTION:
In these questions the coordinates od a point on the parabola y = x^2 are given. State the new coordinates under each transformation.

(a) (3, 9); vertical stretch of -1/3

(b) (3, 9); vertical compression by 3, shift left 5, and shift down 2.

thanks a lot again
 
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