Presentation on theme: "Vocabulary Function A relationship that assigns exactly one output value to each input value Function Rule The operation(s) performed on the input value."— Presentation transcript:
Vocabulary Function A relationship that assigns exactly one output value to each input value Function Rule The operation(s) performed on the input value
Vocabulary Domain The input values of a function (x values) Range The corresponding output values (y values)
Graphing Functions Step 1 Create a table for your function. Step 2 Choose at least 3 input values for x. (-, 0, + when possible) Step 3 Evaluate the function for each input value. Step 4 Plot the points as ordered pairs. Step 5 Join the points to form a line.
Graph the Function Michael Phelps swims the 400-meter individual medley at an average speed of 100 meters per minute. The equation d = 100t describes the distance d that he can swim in t minutes at this speed. Represent the function by a graph. t d = 100t (x,y)
Graph the Function You buy a DVD for $14 and CDs for $9 each. The equation t = c represents the total amount t that you spend if you buy 1 DVD and c CDs. Represent this function by a graph. c t = c (x,y)