5.10 Linear Models.notebook
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5.10 Linear Models
Key Concepts:• When the points on the graph of a relation lie along a straight line, the relation is linear.• A linear relationship implies equal changes over equal intervals. First differences are constant.• The rate of change of a linear relation is constant. For example, a car travelling at a constant speed will travel equal distances over equal time intervals.• If the rate of change is positive, the relation is increasing.• If the rate of change is negative, the relation is decreasing.• If the rate of change is zero, the relation is constant.• The rate of change can be used to predict future trends.• The line of best fit can be used to estimate long term trends when short term trends are not obvious.
Homework: BLM 53 #s 4, 5 & 7