Page 650 - Algebra 1

Find 5.
(88)
7.
(89)
the quotient.
4m 12m2 __
2
÷
6. (x 5r (93)
- 16x + 64) ÷ (x - 8)
17r
Find the zeros of the function shown.
y
6
4
x
-4
-2
2
4
*8.
Find the LCD of _4 - _ 8_ .
x+4 ___
(95)
*9.Add 2x + 5 .
(95)
*10.
(94)
11.
(95)
2x2 -128 x2 -7x-8
Solve the equation 9⎢x - 22 = 14 and graph_the solution._
3 8x-16
2
x +6x+8
Error Analysis Students were asked to subtract -
is correct? Explain the error.
. Which student
2 6x
x2 +6x-16
Student A
6x2 3 ___
__-_ (x+8)(x-2) - 8(x-2)
x2 +6x-16 8x-16 6x2 3
6x (8) - 3(x + 8) _2_ __
8(x + 8)(x - 2) 8(x - 2)(x + 8) 48x -3x-24
_2_ 8(x + 8)(x - 2)
Student B
6x2 3 ___
__-_ (x+8)(x-2) - 8(x-2)
x2 +6x-16 8x-16 6x2 3
6x (8) - 3(x + 8) _2_ __
8(x + 8)(x - 2) 8(x - 2)(x + 8) 48x -3x+24
_2_ 8(x + 8)(x - 2)
*12.
(95)
*13.
Generalize Explain how to find the LCD of two algebr_aic rational expressions.
2
_Running Michele is training for a marathon. She ran x2 - 100 miles on Monday and
(95)
2x - 20
3x s did she run in all?
*14.
(95)
meters Thursday and a. What was the tot_al distance that the track team sprinted?
x-1
_ulti-Step The girls’ track team sprinted
M
4x2 - 196
12x
x2 +x-56
meters Friday. 2x
miles on Tuesday. How many mile_ 2x
b. If their rate was x + 8 meters per minute, how much time did it take them to sprint on Thursday and Friday?
Lesson 95 635