Download JAG Mark - Madison County Schools

JAG Mark
Homework Answers:
1.
2.
1.8 An Introduction to Equations
Vocabulary
equation:
Classifying Equations
Is the equation true, false, or open? Explain.
a.) 24 + 18 = 20 + 22
open sentence:
solution of an equation:
c.) 2x - 14 = 54
b.) 7 8 = 54
Identifying Solutions of an Equation
Is the equation true, false, or open?
a.) 3y + 6 = 5y - 8
c.) 32
1.) Is x=6 a solution of the equation 32 = 2x + 12?
b.) 16 - 7 = 4 + 5
2.) Is m=
8=2 3
a solution of the equation 6m - 8 = -5?
Writing an Equation
Tell whether the given number is a solution for each equation.
1.) 8x + 5 = 29; x=3
2.) 9a - (-72) = 0; a=-8
Using a Table to Find a Solution
What is the solution of 5n + 8 = 48? Use a table.
n
5n + 8
Value of 5n + 8
Homework
a. What is the solution of 25 - 3p = 55? Use a table.
b. What is a good starting value to solve part (a)? Explain your reasoning.
pg 56 # 7-15 (odd); 17-23
(odd); 27, 28
pg 57 # 41-43