Pre-Calc Help please!!?

Question

A manufacturing plant purchases a new molding machine for $225,000. The depreciated value of y (reduced value) after t years is given by y = 225,000 - 20,000t, 0 < t < 8. Sketch the graph of the equation.

Can some one show me step by step how to do this, (once I get points or an equation I can put it on the graph fine) Please help thanks!

Answer 1

this is simply plotting points....  

select various points ranging from 0 to 8 when you substitute it in for your equations.   compose a list and plot points... then connect the dots for your line.