Calcolatrice della pendenza

Inserisci due punti (x₁, y₁) e (x₂, y₂) per ottenere la pendenza e l'equazione della retta che passa per essi.

Risultato

Inserisci i valori e premi Calcola per vedere il risultato.

Formula

m=y2−y1x2−x1m = \frac{y_2 - y_1}{x_2 - x_1}

Slope is rise over run between the two points.

y=mx+b,b=y1−mx1y = mx + b,\quad b = y_1 - m x_1

The y-intercept b is where the line crosses the y-axis.

Come usare questa calcolatrice

  1. Enter the coordinates of two different points.
  2. Press Calculate to see the slope, intercept and equation.

Esempio svolto

Line through (1, 3) and (3, 7)

m = (7 − 3)/(3 − 1) = 2.

b = 3 − 2·1 = 1, so y = 2x + 1.

Domande frequenti

What does an undefined slope mean?

The two points have the same x value, so the line is vertical: its equation is x = constant.

Is slope the same as gradient?

Yes — “gradient” is the common term in the UK and Australia.

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