Read the explanation in each lesson carefully, then study the examples given before doing the exercises.

1. SYSTEMS OF LINEAR EQUATIONS
AND INEQUALITIES
Week 01: Review on Graphing Linear Equations
Prepared by: Jojo M. Lucion
Let's Practice for Mastery 1
A. Transform the following equations to y-form.
1. x + y = 8
2. x - y = - 4
3. x + y = 2 4. 2x - y = 8
5. 3x + 2y = 5
6. 2x + 3y = 0
7. 3x + y = 5
8. 5x - y = 3
9.2x + 3y = 12
10. 4x -3y = 6
B. Identify the slope (m) and the y-intercept (b) in A.
Let's Check your Understanding 1
Identify the slope and the y-intercept
1. y = -x + 3
2. y = -3x + 12
3. y = - 3 x+ 2
2
4. -3x - 5y = 1
5 x - 2y= 1

2. Let's Practice for Mastery 2
Graph the following linear equations using the slope- intercept method.
1.
x-y=8
2.
4. 3x + 2y = 4
-3x + 4y = 12
5. -x - 2y = -8
3. 2x - 3y = 6
Let's Check Your Understanding 2
Graph the following linear equations using the slope- intercept method.
1. x + y = 3
2. 2. 5x -y = 3
3. -x + y = 4
4. 2x + y = 3
5. 5. -4x + y = - 6

3. Let's Do It. Treasure Hunt With Slopes
Using the definition of slope, draw lines with the slopes listed below. A correct solution will
trace the route to the treasure.
1. 3
2. 1/4
3. - 2 /5
4. 0
5. 1
6. -1
7. no slope
8. 2/7
9. 3/2
10. 1/3
11. – 3/4
12. 3