The Equation y = mx + c (Leaving Cert Mathematics): Flashcards

$y = mx + c$

Slope (steepness of the line)

Y-intercept

Rate at which line rises or falls

Line is increasing

Line is decreasing

$(0, c)$

When $x = 0$

Y-intercept, point $(0, c)$

Identical slopes, different y-intercepts

$-1$

Product of their slopes equals $-1$

Flip & change sign: $-\frac{3}{2}$

Steeper line