Write the equation of the line that represents this graph. show your work or explain how you determined the equations.

First the slope must be found.

The graph goes from (0,300) to (450,0), so the slope is falling by 300 every 450 units

numerically, the slope is



which simplifies to



the y intercept is visible on the graph as 300, so now we plug in what we know to slope intercept form

y = (slope) x + y-intercept

38 dollars is your answer.