2.5 Slope Equations Summary

Wednesday,
· 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
-
-