Math 10 Lesson 3-3 Interpreting and Sketching Graphs Lesson Objectives: 1) Graphs communicate how two things are related to one another. Straight, sloped lines indicate a constant change in the relationship. Curves indicate when the rate of change is not linear. Horizontal lines indicate if one quantity is not changing relative to another quantity. Graphs communicate A graph is an effective way to show the relationship between two quantities. In a previous lesson we saw how a point graph can effectively represent the relationship between the number of cards with the number on the card. Other kinds of graphs communicate different ideas. A constant rate of change is represented graphically by a straight line. The steepness or slope of the line indicates the rate at which one quantity is changing in relation to the other. A steeper line indicates a faster rate of change. A horizontal line means that there is no change. Every value on the horizontal axis is related to the same value on the vertical axis. However, not all relationships are represented by a straight line. A curve shows that the rate of change is not constant.
Math 10 Lesson 3-3 Interpreting and Sketching Graphs Lesson Objectives: 1) Graphs communicate how two things are related to one another. Straight, sloped lines indicate a constant change in the relationship. Curves indicate when the rate of change is not linear. Horizontal lines indicate if one quantity is not changing relative to another quantity. Graphs communicate A graph is an effective way to show the relationship between two quantities. In a previous lesson we saw how a point graph can effectively represent the relationship between the number of cards with the number on the card. Other kinds of graphs communicate different ideas. A constant rate of change is represented graphically by a straight line. The steepness or slope of the line indicates the rate at which one quantity is changing in relation to the other. A steeper line indicates a faster rate of change. A horizontal line means that there is no change. Every value on the horizontal axis is related to the same value on the vertical axis. However, not all relationships are represented by a straight line. A curve shows that the rate of change is not constant.