review sheet b substitution and solving inequalities
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Review Sheet B: Substitution and
Solving Inequalities - Chapter 10
Review Sheet B: Substitution and
Solving Inequalities - Chapter 10
Simplify the following expressions using substitution.
Simplify the following expressions using substitution.1. 4x when x = -51. 4x when x = -5
4(-5) =
4(-5) =
-20-20
2. x2 when x = -72. x2 when x = -7(-7)2 =
(-7)2 =
4949
3. -x2 + 5 when x = 63. -x2 + 5 when x = 6-(6)2 + 5=-(6)2 + 5=-31-31
4. x2 - 3x when x = -94. x2 - 3x when x = -9(-9)2 - 3(-9)=(-9)2 - 3(-9)= 108108
Simplify the following expressions using
substitution.
Simplify the following expressions using
substitution.
5. x2 + 8x - 6 when x = 45. x2 + 8x - 6 when x = 4
(4)2 + 8(4) - 6 =(4)2 + 8(4) - 6 = 4242
Simplify the following expressions using substitution.
Simplify the following expressions using substitution.
Solve the following one step inequalities.
Solve the following one step inequalities.
6. x - 8 > 76. x - 8 > 7+8 +8 x > 15
7. - x < -6 3• -3 •-3
x > 18
Solve the following two step inequalities.
Solve the following two step inequalities.
8. 9x - 7 ≥ 568. 9x - 7 ≥ 56
+7 +79x ≥ 63÷9 ÷9x ≥ 7
9. 10 ≥ -x + 8- 8 - 82 ≥ -x
÷-1 ÷-1-2 ≤ x
Graph the following inequality.Graph the following inequality.
10. x + 2 > 610. x + 2 > 6-2 -2
x > 4