Page 59 - Math SL HB Sem 1

t.

I-UN(]'TIONS , t,tQUAt't()N S, INI'QTJAI-II'II.]S

c) Reflection about the lincy = *

The graph off-r1x; is a reflection of the graph off(x) about tlre Iine v = x
l'
y=.[-t(x) y=x
(b,a)

the graph of y - /(:) y-l(x)
ana y = f-t(x) (a,b)
will meet on the line
l=x

I

Examole I
Given the graph of y .ftx). Sketch the graph of )'
a) y = f(-x) 0,3)
b) y = --f(*)
y="f(x)

X
2 4
,- l)

3- l3