Line slope calculator 4x+9y=72


Enter coordinates of two different points:

Straight line given by points A[0; 8] and B[9; 4]

Calculation:

Slope-intercept form of line: y = -0.4444x+8

Canonical form of the line equation: 4x+9y-72 = 0

Parametric form of the line equation:
x = 9t
y = -4t+8      ; t ∈ R

Slope: m = -0.4444

Slope angle of line: φ = -23°57'45″ = -0.4182 rad

X intercept: x0 = 18

Y intercept: y0 = q = 8

Distance line from the origin: d0 = 7.3105

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

Vector: AB = (9; -4)

Normal vector: n = (4; 9)

Midpoint of the segment AB: M = [4.5; 6]

Perpendicular Bisector equation: 9x-4y-16.5 = 0


Vector OA = (0; 8) ;   |OA| = 8
Vector OB = (9; 4) ;   |OB| = 9.8489
Scalar product OA .OB = 32
Angle ∠ AOB = 66°2'15″ = 1.1526 rad