1. Section 2.4 Another Look at Linear Graphs
Zero Slope & Lines with Undefined Slope
Horizontal & Vertical Lines
Graphing Using Both Intercepts (Cover-Up Method)
(0,?) and (?,0)
Solving Equations Graphically
Recognizing Linear Equations
2.4

2. Horizontal Line Equations – 0 Slope
2.4

3. Examples of Horizontal Lines
2.4

4. Vertical Line Equations – Undefined Slope
2.4

5. Examples of Vertical Lines
2.4

6. Finding Both Intercepts (0,?) and (?,0)
2.4

7. Example – MrV’s Cover-up Method
2.4

8. When Cover-up is not enough …
2.4

9. Solving Single-Variable Equations Graphically 2x + 5 = -3
Graph each side of the equation
f(x) = 2x and g(x) = -3
Solution: The x-coordinate where lines intersect
2.4

10. 2.4

11. 5
2.4

12. The Downside of Solving by Graphing: It is not Precise
2.4

13. Recognizing Linear Equations
2.4

14. Roll up your sleeves & get to work!
Section 2.5 – Other Equations of Lines
2.4