Page 674 - Algebra 1

Lesson Practice
Practice
Distributed and Integrated
a. Solve (x - 3)(x + 7) = 0. (Ex 1)
Find the roots.
b. x2 +3x-18=0
(Ex 2)
Solve.
c. 2x2 +13x+15=0 (Ex 2)
e. 45x2 =27x (Ex 5)
d.
(Ex 3)
f.
(Ex 5)
g.
(Ex 4)
5x2 -20x=10x-45 25x2 -16=0
Architecture A rectangular pool has an area of 360 square feet. The length is 6 feet more than three times the width. Find the dimensions of the pool.
Solve and graph the inequality.
1. 11<2(x+5)<20 2. ⎢x +1.5≤7.6
(82)
3. Determine whether the polynomial -121 + 9x2 is a perfect-square trinomial or a
(83) difference of two squares. Then factor the polynomial. 4. Graph the function y = 2x2 + 8x + 6.
(9 6)
5. The number of Apples A and Oranges O grown in a certain fruit orchard can (53) be modeled by the given expressions where x is the number of years since the
trees were planted. Find a model that represents the total number of apples and oranges grown in this orchard.
A=15x3 +17x-20 O=20x3 +11x-4
6. Write an equation for a line that passes through (1, 2) and is perpendicular (65) to y = -_3 x + 2_3 .
44
7. Solve the equation 4⎢x + 3 = 11 and graph the solution.
(94)
Simplif_y.
_ 9
8.
(92)
*10.
(97)
*11.
(98)
_3 x + 6 _7 x - 7 5x + 10
2 -1 2 9. (5xyz) (3x y)
(40)
14x - 14
Determine if the ordered pair (5, 5) is a solution of the inequality y < -5x + 4. Write Explain the Zero Product Property in your own words.
(91)
Lesson 98 659