Grade 8 Algebra: Interpreting Function Graphs

Name: ______________________Date: ____________Score: ____ / 8

Level 2

Increasing, decreasing and constant

Directions: Read the graph in each context. The horizontal axis is time t; the vertical axis is the stated quantity.

1.
$\text{Distance}$ $\text{from}$ $\text{home}$ $\text{in}$ $\text{km,}$ $\text{time}$ $\text{in}$ $\text{hours.}$ $\text{When}$ $\text{is}$ $\text{the}$ $\text{person}$ $\text{moving}$ $\text{away?}$
2.
$\text{Distance}$ $\text{from}$ $\text{home}$ $\text{in}$ $\text{km,}$ $\text{time}$ $\text{in}$ $\text{hours.}$ $\text{When}$ $\text{is}$ $\text{the}$ $\text{person}$ $\text{stationary?}$
3.
$\text{Distance}$ $\text{from}$ $\text{home}$ $\text{in}$ $\text{km,}$ $\text{time}$ $\text{in}$ $\text{hours.}$ $\text{When}$ $\text{is}$ $\text{the}$ $\text{person}$ $\text{returning?}$
4.
$\text{Distance}$ $\text{from}$ $\text{home}$ $\text{in}$ $\text{km,}$ $\text{time}$ $\text{in}$ $\text{hours.}$ $\text{What}$ $\text{is}$ $\text{the}$ $\text{greatest}$ $\text{distance?}$
5.
$\text{Temperature}$ $\text{in}$ $\text{degrees}$ $\text{Celsius,}$ $\text{time}$ $\text{in}$ $\text{minutes.}$ $\text{When}$ $\text{is}$ $\text{it}$ $\text{increasing?}$
6.
$\text{Temperature}$ $\text{in}$ $\text{degrees}$ $\text{Celsius,}$ $\text{time}$ $\text{in}$ $\text{minutes.}$ $\text{When}$ $\text{is}$ $\text{it}$ $\text{constant?}$
7.
$\text{Temperature}$ $\text{in}$ $\text{degrees}$ $\text{Celsius,}$ $\text{time}$ $\text{in}$ $\text{minutes.}$ $\text{When}$ $\text{is}$ $\text{it}$ $\text{decreasing?}$
8.
$\text{Temperature}$ $\text{in}$ $\text{degrees}$ $\text{Celsius,}$ $\text{time}$ $\text{in}$ $\text{minutes.}$ $\text{What}$ $\text{is}$ $\text{it}$ $\text{at}$ $\text{5}$ $\text{minutes?}$