# Line slope calculator 9x-y=80

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

## Calculation:

**Slope-intercept form of line:**y = 9x-80

**Canonical form of the line equation:**9x-y-80 = 0

**Parametric form of the line equation:**

x = t+9

y = 9t+1 ; t ∈ R

**Slope:**m = 9

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

**X intercept:**x

_{0}= 8.8889

**Y intercept:**y

_{0}= q = -80

**Distance line from the origin:**d

_{0}= 8.8345

**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-59 = 0

**Vector OA = (9; 1) ; |OA| = 9.0554**

**Vector OB = (10; 10) ; |OB| = 14.1421**

**Scalar product OA .OB = 100**

**Angle ∠ AOB = 38°39'35″ = 0.6747 rad**