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

Horizontal Line Equations – 0 Slope 2.4

Examples of Horizontal Lines 2.4

Vertical Line Equations – Undefined Slope 2.4

Examples of Vertical Lines 2.4

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

Example – MrV’s Cover-up Method 2.4

When Cover-up is not enough … 2.4

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

2.4

5 2.4

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

Recognizing Linear Equations 2.4

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