f(x) = 8-4x
A f(2) = 8-4(-2)
B 8-4x = 8
C Now you have two points. Draw the line connecting them
D all real numbers. Think about it. Pick any x you want, and y is defined. A line goes out forever in both directions.
E,F now use the graph.
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Given: f(x) = 8 - 4x
A. Find f(-2)
B. Find x, when f(x) = 8
C. Graph the function.
D. State the domain and range of the function.
E. Use the graph to find x, when f(x) = 0. Show details on the graph.
F. Use the graph to find f(x) when x = 3. Show details on the graph.
2 answers
are the points x or y?