Key Features of Linear Equations

Positive

Negative

Zero

Undefined

Positive

Negative

Zero

Undefined

Positive

Negative

Zero

Undefined

Positive

Negative

Zero

Undefined

The coordinates where a line intersects with the x-axis

The coordinates where a line intersects with the y-axis

$$\frac{change\ of\ y}{change\ of\ x}$$  

The coordinates where a line intersects with the x-axis

The coordinates where a line intersects with the y-axis

$$\frac{change\ of\ y}{change\ of\ x}$$  

The coordinates where a line intersects with the x-axis

The coordinates where a line intersects with the y-axis

$$\frac{change\ of\ y}{change\ of\ x}$$  

(3, 0)

(0, 3)

(3, 3)

(3, 0)

(0, 3)

(3, 3)

x-intercept

y-intercept

both

neither