4-1 Practice
Using Graphs to Relate Two Quantities
What are the variables in each graph? Describe how the variables are related at
various points on the graph.
1.
2.
3.
Volume of Pool Water
Temperature of Water
Plant Height
Volume
Temp (°F)
Plant Height
Time
Depth
Time

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

The graph of which equation includes the points (0, 10) and (10, 11)? y = 10x + 11 y = x + 10 y= 1/10x + 10 y = 1/10x + 11

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?