# Line slope calculator 9x+y=91

**Straight line given by points A[9; 10] and B[10; 1]**

## Calculation:

**Slope-intercept form of line:**y = -9x+91

**Canonical form of the line equation:**9x+y-91 = 0

**Parametric form of the line equation:**

x = t+9

y = -9t+10 ; t ∈ R

**Slope:**m = -9

**Slope angle of line: φ =**-83°39'35″ = -1.4601 rad

**X intercept:**x

_{0}= 10.1111

**Y intercept:**y

_{0}= q = 91

**Distance line from the origin:**d

_{0}= 10.0493

**The length of the segment AB: |AB| =**9.0554

**Vector: AB =**(1; -9)

**Normal vector: n =**(9; 1)

**Midpoint of the segment AB: M =**[9.5; 5.5]

**Perpendicular Bisector equation:**x-9y+40 = 0

**Vector OA = (9; 10) ; |OA| = 13.4536**

**Vector OB = (10; 1) ; |OB| = 10.0499**

**Scalar product OA .OB = 100**

**Angle ∠ AOB = 42°18'8″ = 0.7383 rad**