1. Writing equations in slope intercept form
Y = mX + b
Slope or
Rate of change
Y intercept

2. 4 5 Y = -⅘X - 3 The line has a negative trend
So the slope is - ⅘ Y
The y intercept is at 0, -3
So the equation for the line is…… 4 X
Y = -⅘X - 3 5

3. 4 12 Y = ⅓X + 6 The line has a positive trend So the slope is ⁴⁄₁₂ = ⅓
The y intercept is at 0, 6
So the equation for the line is……
Y = ⅓X + 6

4. 2 1 Y = 2X + 1 The line has a positive trend So the slope is ²⁄₁ = 2
The y intercept is at 0, 1 1 X
So the equation for the line is……
Y = 2X + 1

5. 2 3 Y = -⅔X - 1 The y intercept is at 0, -1
So the equation for the line is……
Y = -⅔X - 1 2 X 3
The line has a negative trend
So the slope is - ⅔

6. Y = ½X + 6 Y = ½X + 0 Y = ½X - 4 Parallel lines will ALWAYS
Have the same slope
Y = ½X + 0 X
Y = ½X - 4

7. Y X
Horizontal line
Y = 2

8. Y
Vertical line
X = - 5 X

9. The line has a negative trend So the slope is The y intercept is at
So the equation for the line is…… X

10. The line has a positive trend So the slope isY X
The line has a positive trend
So the slope is
The y intercept is at
So the equation for the line is……

11. The line has a positive trend So the slope isY
The y intercept is at X
So the equation for the line is……

12. So the equation for the line is……
The y intercept is at Y
So the equation for the line is…… X
The line has a negative trend
So the slope is

13. Y X

14. Y X

15. Y X