143k views
2 votes
How to sketch a graph base on pic 1's graph?

How to sketch a graph base on pic 1's graph?-example-1
How to sketch a graph base on pic 1's graph?-example-1
How to sketch a graph base on pic 1's graph?-example-2

1 Answer

3 votes

Answer:

see attached

Explanation:

You want a graph of the given piecewise function f(x) after it has been transformed to -3f(3/2x) +2.

Transformations

The various transformations that can be applied to a function are ...

g(x) = a·f(b(x-c)) +d

where ...

  • a = vertical expansion factor; negative values reflect the graph over the x-axis
  • b = horizontal compression factor; negative values reflect the graph over the y-axis
  • c = horizontal translation to the right
  • d = vertical translation up

Application

Comparing this form to the given function, we see ...

  • a = -3: expanded vertically by a factor of 3 and reflected over the x-axis
  • b = 3/2: compressed to by a factor of 3/2 to 2/3 the original width with respect to the y-axis. (Each x-coordinate is multiplied by 2/3 to give the x-coordinate of the scaled graph.)
  • c = 0: no horizontal translation. (The apparent right shift in the vertex is a result of the horizontal compression.)
  • d = 2: translation of the vertically reflected graph upward 2 units

The scaled and shifted graph is the green graph shown in the attachment.

How to sketch a graph base on pic 1's graph?-example-1
User Neo Ko
by
7.2k points

No related questions found