Line slope calculator 4x+9y=45


Enter coordinates of two different points:

Straight line given by points A[0; 5] and B[9; 1]

Calculation:

Slope-intercept form of line: y = -0.4444x+5

Canonical form of the line equation: 4x+9y-45 = 0

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

Slope: m = -0.4444

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

X intercept: x0 = 11.25

Y intercept: y0 = q = 5

Distance line from the origin: d0 = 4.5691

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; 3]

Perpendicular Bisector equation: 9x-4y-28.5 = 0


Vector OA = (0; 5) ;   |OA| = 5
Vector OB = (9; 1) ;   |OB| = 9.0554
Scalar product OA .OB = 5
Angle ∠ AOB = 83°39'35″ = 1.4601 rad