Question

Help me Describe how y = f(x) is transformed by each of the following:

a) y = -f(x+2) – 5

b) y = f(-x) + 5

Answer 1

anything added/subtracted outside of the f(x) is up or down

Answer 2

anything added/subtracted inside f(x) is left or right ----left is +, right is -
the negative outside is reflected over the x-axis
the negative inside is reflected over the y-axis

Answer 3

up is +, down is - I forgot to add that.
If you want to tell me what you get for each, I can check it to make sure its correct...

Answer 4

Thanks Jimyers, I did some readings and I understand now :)

Answer 5

a) y = -f(x+2) – 5

- “-f”, due to its negative sign mean it will cause a vertical flip (“upside down”)
- “+2”, will cause a horizontal stretch to the left.
- “-5”, being negative causes a vertical shift downwards on the graph.


b) y = f(-x) + 5

- “-x”, will cause a horizontal stretch to the right.
- “+5”, will cause a vertical shift upwards on the graph.


**Correct me please