Line slope calculator 8x+9y=72


Enter the coordinates of two different points:
Line slope diagram

Straight line given by points A[0; 8] and B[9; 0]

Calculation:

Slope: m = -0.8889

Slope-intercept form of line: y = -0.8889x+8

Canonical form of the line equation: 8x+9y-72 = 0

Parametric form of the line equation:
x = 9t
y = -8t+8      ; t ∈ R

Slope angle of line: φ = -41°38'1″ = -0.7266 rad

X intercept: x0 = 9

Y intercept: y0 = q = 8

Distance line from the origin: d0 = 5.9793

The length of the segment AB: |AB| = 12.0416

Vector: AB = (9; -8)

Normal vector: n = (8; 9)

Midpoint of the segment AB: M = [4.5; 4]

Perpendicular Bisector equation: 9x-8y-8.5 = 0

Vector OA = (0; 8) ;   |OA| = 8
Vector OB = (9; 0) ;   |OB| = 9
Scalar product OA .OB = 0
Angle ∠ AOB = 90° = 1.5708 rad