1. Name: ___________________
Tech Math I – Chapter 3 Mid - Review
Find the slope and y – intercept of each line.
1. y = 3x – 9 2. y = -2x – 7
3. y = -x + 12 4. y = 5x
5. 4x + y = -12 6. 2x + 2y = 8
7. 8x - 2y = 16 8. -y = 3x + 2
Find the slope of a line given two points.
9. (3, 2) and (1, 5) 10. (-1, 2) and (9, -4)
11. (-2, 7) and (0, 19) 12. (8, 4.5) and (-4, 3.5)
13. (6, -4) and (2, 18) 14. (1, -2) and (7, 8)
Find the line parallel and passes thru the given point.
15. m = 2, (0, 4) 16. m = -3, (2, 5)
17. m = ½, (-4, 1) 18. m = -1/3, (-1, 6)
19. y = 4x – 7, (-3, 0) 20. y = -2x + 12, (-2, 4)

2. Name: ___________________
Tech Math I – Chapter 3 Mid - Review
Find the line perpendicular and passes thru the given point.
21. m = 3, (1, 6) 22. m = -1, (2, 6)
23. m = ½, (-2, 5) 24. m = -1/3, (-7, 7)
Find the intersection of the following pairs of lines.
25. y = 12x + 2 26. y = 6x – 3
y = -4x + 10 y = -x + 1
27. y = -x – 6 28. y = 12x + 12
y = 4x - 12 y = 3x - 6
Use the elimination method to find the intersection of the following pairs of lines.
29. 3x + 2y = 6 30. 2x + 5y = -22
x – 2y = 6 10x + 3y = 22
31. 3x + 2y = -9 32. 4x + 5y = 15
-10x + 5y = -5 6x - 4y = 11