Interpreting Graphs (Junior Cert Mathematics): Flashcards

Points where graph crosses the $x$-axis

Points where graph crosses $x$-axis (roots)

Draw horizontal line at $y = k$, find intersections

When graph is below the $x$-axis ($y < 0$)

The highest point on the graph

The lowest point on the graph

Points where graph changes direction

Locate $x = k$, read corresponding $y$-value

When graph goes up from left to right

When graph goes down from left to right