Test will cover...
- Combining like terms
- Evaluating expressions
- Solving 1-step equation
- Solving 1-step inequalities
I will put together a study sheet for students that will cover every type of question from the test. This will go home with them Wednesday. Wednesday and Thursday will be strickly Unit review in class so between class time and completing their study sheet at home, they will have plenty of opportunity to prepare for this exam.
Today we will introduce the final concept in Unit 2 - Solving 1 step inequalities
The good news is that 1-step inequalities is VERY similar to solving 1-step equations. The only difference is that we are not dealing with equations (think: equal sign) but instead inequalities (less than, greater than, less than or equal to, greater than or equal to). Students will solve for the variable and graph their solution on a number line. A closed dot is inclusive (includes the number where the dot is located), an open circle is exclusive (does not include the number where the circle is located)
Below are examples from tonights homework
Solving Inequalities
Solve for x, then draw and graph on a number line
1.) x + 15 < 34 2.) x + 19 ≥ 43 3.) x + 42 < 132
answer: x < 19 answer: x ≥ 24 answer: x < 90
4.) 45 + x ≤ 73 5.) x – 12 < 27 6.) 63 ≥ x – 14
answer: x ≤ 28 answer: x < 39 answer: x ≤ 77
7.) 15x > 45 8.) 120 ≤ 12x 9.) 7x > 77
answer: x ≤ 3 answer: x ≥ 10 answer: x > 11
10.) x / 15 ≤ 60 11.) 150 > x / 5 12.) 56 ≤ x / 9
answer: x ≤ 900 answer: x < 750 answer: x ≥ 504
