Simultaneous Equations (HSC SSCE Mathematics Standard): Flashcards

Pair of equations solved together for values satisfying both

$x$ and $y$ values that work in both equations simultaneously

$y = mx + c$

Gradient (coefficient of $x$, controls slope)

Y-intercept (where line crosses y-axis)

Same $x$ and $y$ values appearing in both tables

Where business changes from loss to profit (income = costs)

When they are parallel (same direction, never meeting)

Draw plane, graph both lines, find intersection, interpret

Has important practical meaning as solution to the problem