# Line slope calculator x+7y=28

**Straight line given by points A[0; 4] and B[7; 3]**

## Calculation:

**Slope-intercept form of line:**y = -0.1429x+4

**Canonical form of the line equation:**x+7y-28 = 0

**Parametric form of the line equation:**

x = 7t

y = -t+4 ; t ∈ R

**Slope:**m = -0.1429

**Slope angle of line: φ =**-8°7'48″ = -0.1419 rad

**X intercept:**x

_{0}= 28

**Y intercept:**y

_{0}= q = 4

**Distance line from the origin:**d

_{0}= 3.9598

**The length of the segment AB: |AB| =**7.0711

**Vector: AB =**(7; -1)

**Normal vector: n =**(1; 7)

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

**Perpendicular Bisector equation:**7x-y-21 = 0

**Vector OA = (0; 4) ; |OA| = 4**

**Vector OB = (7; 3) ; |OB| = 7.6158**

**Scalar product OA .OB = 12**

**Angle ∠ AOB = 66°48'5″ = 1.1659 rad**