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.

1 answer

A. f(-2) = 8-4(-2)
B. 8-4x = 9

You have two points now. plot them and draw the line between them

A line goes forever in both directions, both horizontally and vertically, so ...

now look up the points for E and F
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