8th Grade Honors Algebra Test #3, Quarter 4 - Test on Thursday, 4/28/11
10-8 Systems of Linear Inequalities #3, 11, 13, 17, 19, 21
Change the linear inequalities to slope intercept form and graph each one.
< and > dashed
≤ 𝑎𝑛𝑑 ≥ solid
< and ≤ shade below
> and ≥ shade above
11-1 Properties of Rational Numbers #21, 23, 27, 30, 33
Be able to find a number ½, 1/3, ¾, etc. of the way between two numbers.
11-2 Decimal forms of rational numbers #1, 3, 9, 21, 23, 25, 31, 37
Know how to write a repeating decimal as a fraction and know how to write a fraction as a terminating or
repeating decimal.
11-3 Rational Square Roots # 5, 9, 15, 21, 31
There are 2 square roots for every number, a positive and negative square root.
To find the square root, factor the radicand and find squares that divide the radicand.
11-4 Irrational Square Roots #1, 15, 21, 29
To find the square root, factor the radicand and find squares that divide the radicand.
11-5 Square Roots of Variable Expressions #1, 5, 11, 17, 19, 25, 29, 37
When you are finding square roots of variable expressions, you must use absolute value signs to make sure
your answer is positive.
However, only use absolute value signs for variable expressions with ODD exponents (even exponents will be
positive).
-√
√
negative square root
±√
positive and negative square roots
positive square root
Find the square root of the number first and then find the square root of the variable expression