# Line slope calculator 9x-4y=-4

**Straight line given by points A[0; 1] and B[4; 10]**

## Calculation:

**Slope-intercept form of line:**y = 2.25x+1

**Canonical form of the line equation:**9x-4y+4 = 0

**Parametric form of the line equation:**

x = 4t

y = 9t+1 ; t ∈ R

**Slope:**m = 2.25

**Slope angle of line: φ =**66°2'15″ = 1.1526 rad

**X intercept:**x

_{0}= -0.4444

**Y intercept:**y

_{0}= q = 1

**Distance line from the origin:**d

_{0}= 0.4061

**The length of the segment AB: |AB| =**9.8489

**Vector: AB =**(4; 9)

**Normal vector: n =**(9; -4)

**Midpoint of the segment AB: M =**[2; 5.5]

**Perpendicular Bisector equation:**4x+9y-57.5 = 0

**Vector OA = (0; 1) ; |OA| = 1**

**Vector OB = (4; 10) ; |OB| = 10.7703**

**Scalar product OA .OB = 10**

**Angle ∠ AOB = 21°48'5″ = 0.3805 rad**