Interpreting Graphs of Functions
Aligned to F-IF.B.4 — Common Core State Standards for Mathematics.
What this lesson teaches
A graph tells a story: intercepts, where it increases or decreases, and maximums or minimums all have real meaning depending on the context.
Worked example
A ball's height vs. time rises to a peak (maximum height) then falls; the x-intercepts are when it leaves and hits the ground.
Practice questions
- On a distance-time graph, what does a flat line mean?
- Identify the maximum of a parabola opening downward.
- What do the x-intercepts of a height graph represent?
Watch the lesson
Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.
▶ Watch this lessonEn español
Interpretación de Gráficas de Funciones
Una gráfica cuenta una historia: las intersecciones, los intervalos donde crece o decrece, y los máximos o mínimos tienen un significado real dependiendo del contexto.
Ejemplo: La altura de una pelota en función del tiempo sube hasta un punto máximo (altura máxima) y luego baja; las intersecciones con el eje x representan el momento en que la pelota sale y cuando toca el suelo.
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