Line slope calculator 9x+4y=85


Enter coordinates of two different points:

Straight line given by points A[5; 10] and B[9; 1]

Calculation:

Slope-intercept form of line: y = -2.25x+21.25

Canonical form of the line equation: 9x+4y-85 = 0

Parametric form of the line equation:
x = 4t+5
y = -9t+10      ; t ∈ R

Slope: m = -2.25

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

X intercept: x0 = 9.4444

Y intercept: y0 = q = 21.25

Distance line from the origin: d0 = 8.6304

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

Vector: AB = (4; -9)

Normal vector: n = (9; 4)

Midpoint of the segment AB: M = [7; 5.5]

Perpendicular Bisector equation: 4x-9y+21.5 = 0


Vector OA = (5; 10) ;   |OA| = 11.1803
Vector OB = (9; 1) ;   |OB| = 9.0554
Scalar product OA .OB = 55
Angle ∠ AOB = 57°5'41″ = 0.9965 rad