# Line slope calculator 3x-y=9

**Straight line given by points A[3; 0] and B[4; 3]**

## Calculation:

**Slope-intercept form of line:**y = 3x-9

**Canonical form of the line equation:**3x-y-9 = 0

**Parametric form of the line equation:**

x = t+3

y = 3t ; t ∈ R

**Slope:**m = 3

**Slope angle of line: φ =**71°33'54″ = 1.249 rad

**X intercept:**x

_{0}= 3

**Y intercept:**y

_{0}= q = -9

**Distance line from the origin:**d

_{0}= 2.846

**The length of the segment AB: |AB| =**3.1623

**Vector: AB =**(1; 3)

**Normal vector: n =**(3; -1)

**Midpoint of the segment AB: M =**[3.5; 1.5]

**Perpendicular Bisector equation:**x+3y-8 = 0

**Vector OA = (3; 0) ; |OA| = 3**

**Vector OB = (4; 3) ; |OB| = 5**

**Scalar product OA .OB = 12**

**Angle ∠ AOB = 36°52'12″ = 0.6435 rad**