" a
5.? lntergrering Granhs of Linear Functions 13 1.)
An! linear relation is a Function. except for vertical lines. A linear function usually has two interceEts.
" orizontal Intercept
The .r coord'1nate of the Eoint where a graph intersects t
.3 Mixed and Entire Radicals
leduce Rules Involving Radicals
sample 1. Determlne whether each statement is true or false.
a] E JE+~JE lsequalto d9+4 bl E singJ; isequaito 94
s + a. F: a - a a?
=' S i: 3, ' l .1} 2.3
cl 1 x-u'q 1's equalto ngd d] I is equa
I. I! l'l'l IL? LL Iltlll Luna
Deduee Exponent Laws
Example 1. File-write each using repeated multiplication then simplify.r to a single power.
I . 4 i- t
a] ixi: 53":15 b} ll+i?3*:gl 1:} {3:} :3 =3
r-s-s-s -($)= s '1' W3 = 3 .3 . 3-1 « 3-: ~ 3-3
( ) .r
Continuity
1. Find the x-values at which f is not continuous. Which of the discontinuity are
removable?
. () =
2
. () =
+2
2 3 10
. () =
| 8|
8
2. For what value of a is () continuous at every x?
2
. () = cfw_ 1
2
. () = cfw_ + 1
2 +
<3
3
<0
0
3. Expla