Unit 6: Inequalities
Graph the inequality on a number line: x < 4
-closed circle at 4
-arrow going left
Simplify:
(-2x3)(6x5)
-12x8
Simplify:
(2x2 - 3x + 1) + (7x2 + 10x + 8)
9x2 + 7x + 9
Solve:
x2 - 36 = 0
x = -6, 6
In Spongebob Squarepants, which character is always trying to steal the krabby patty formula?
Plankton
Solve for y.
6 + 7y < -43
y < -7
Simplify:
(5a3b8c)2
25a6b16c2
Simplify:
(4x2 - 6x + 1) - (5x2 + 8x + 6)
-x2 - 14x - 5
Solve x2 + 9x + 20 = 0
x = -5, -4
Who were the two teams in the World Series last year?
Los Angeles Dodgers and New York Yankees
Solve for g.
-3g + 4 < 25
g > -7
Simplify:
(5a3b)0
1
Simplify:
(3x - 5)2
9x2 - 30x + 25
Solve x2 - 3x - 28 = 0.
x = -4, 7
How long is a marathon?
26.2 Miles
Consider -2x - 6 < 18.
Which of the following values could x be?
-12, -10, -14, or -20?
x > -12
x could be -10
Simplify:
30x2y6
5x2y26y4
A rectangle has a length of 4x + 2 and a width of x + 6. What is the perimeter?
10x + 16
Factor 12x4 + 18x2. (Hint: Use the GCF)
6x2 (2x2 + 3)
How many bones do sharks have?
None
An iguana needs to live in a warm environment. The temperature in the cage should be at least 70 degrees but no more than 95 degrees. Write a compound inequality to represent the situation.
70 < t < 90
or
t > 70 and t < 90
x9y3
x6y7
x3
y4
A rectangle has a width of x - 3 and a length of 2x2 + 5x - 1. What is the area of the rectangle?
2x3 - x2 - 16x + 3
Solve (find the solutions):
5x2 - 10x - 15 = 0
x = -1 , 3
Name at least 3 of the 5 principals at La Joya.
Dr. Sorensen, Mr. Heytens, Mr. Williams, Mr. Junk, Ms. Hernandez