Types of Graphs (Leaving Cert Mathematics): Flashcards

$f(x) = mx + b$

Slope (steepness) of the line

$y$-intercept (where graph crosses $y$-axis)

Rise over run

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Vertical distance / horizontal distance

$y - y_1 = m(x - x_1)$

Interchangeable; mean the same thing

One variable increases, other increases

One variable increases, other decreases

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