· SEPT 4th .
r(x) h(x) XY
=
y-intercept
y
=
r(a =
= 3 x = 0(x + )(X 4) = -
0
1
r(x) xy y / 10 , in)
=
0
3
=
yux = Y
=
XA
+
X = -
!
10 False numerator denominator
no x-intercepts
2
combine
f(x) 2 3
y(x)
=
x =
-
-
x
-
7
X2 16 = 0
3- x20 720 and
-
X- X-7 =0
(x + y)(X -
4) = 0
X= 3 x 7 (7 8) x=
-
yUX = Y
4) v(4 , 8)
,
( -
0 ,
-
4)u( -
y,
( -
00 , 3] notation
(
-
00
,
-
u)u) -
4, 3]
SLOPE EQUATIONS
into Y
Plug =
mx +b
Yz
( 4 -2) m = - (7 ,3) and [ 1)
-
, ,
, 1 =
* (4) +b
z =
3/2(y) + b
= 1 =
1+
-
-
6 19
Ezx 1
2 +
b b
-
= -
=
-
6
y
-
= +
5
- -
=
G
3/2X % a line with an undefined
y
-
-
=
(-8 1) and ,
(0 -3) ,
Slope is a vertical line
= - =
a line with a slope of zero
SCOPE
is a horizontal line
Y
INT -
-
,
y
=
zx 3
-
-