# Line slope calculator 3x-7y=-21

**Straight line given by points A[0; 3] and B[7; 6]**

## Calculation:

**Slope-intercept form of line:**y = 0.4286x+3

**Canonical form of the line equation:**3x-7y+21 = 0

**Parametric form of the line equation:**

x = 7t

y = 3t+3 ; t ∈ R

**Slope:**m = 0.4286

**Slope angle of line: φ =**23°11'55″ = 0.4049 rad

**X intercept:**x

_{0}= -7

**Y intercept:**y

_{0}= q = 3

**Distance line from the origin:**d

_{0}= 2.7574

**The length of the segment AB: |AB| =**7.6158

**Vector: AB =**(7; 3)

**Normal vector: n =**(3; -7)

**Midpoint of the segment AB: M =**[3.5; 4.5]

**Perpendicular Bisector equation:**7x+3y-38 = 0

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

**Vector OB = (7; 6) ; |OB| = 9.2195**

**Scalar product OA .OB = 18**

**Angle ∠ AOB = 49°23'55″ = 0.8622 rad**