LINEAR RATE OF CHANGE- Day 3 EOC Test Strategy LINEAR RATE OF CHANGE- Day 3

TEST STRATEGIES FOR LINEAR RATE OF CHANGE 1). Recognize key terms & formats for linear rate of change. 2). Identify whether a problem will use linear rate of change. 3). Read the table to find the linear rate of change. 4). Read the table to find the linear rate of change w/out incremental change in x. 5). Read the table to find the linear rate of change between specified pts. 6). Interpret rate of change in context 7). Extend table to find equation 8). Use calculator to find equation. 9). Interpret the constant & coefficient. 10). Finding specific range value for a given domain value. 11). If no table is given, create one.

TEST STRATEGY –Mark the table. Once you know that you are looking for a linear rate of change: Find the change in the values for y. Find the change in the values for x. Write the answer as a fraction 𝑦 𝑥 . This is your constant rate of change.

EXAMPLE #3.1 The table below shows the number of minutes Derrius played basketball and the total number of calories he burned. What is the average rate of change in the total calories Derrius burned? Time (minutes) Total Calories 15 70 25 110 35 150 45 190

TEST STRATEGY – Mark the table. Sometimes the domain (x) values will NOT go up by the same amount each time. You still look for a linear rate of change: Find the change in the values for y. Find the change in the values for x. Write the answer as a fraction 𝑦 𝑥 . Check to see that this is the same for the whole table.

EXAMPLE #3.2 The table below shows the number of minutes Jeffrey played basketball and the total number of calories he burned. What is the average rate of change in the total calories Jeffrey burned? Time (minutes) 15 30 60 75 Total Calories 90 110 150 170

YOU TRY: (wkst #3) *Mark the text to indicate how you know this is a linear rate of change problem. *Mark the table to show the change in range & domain.

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