Question

Someone please help me with this algebra problem

Answer 1

$110

Explanation:

We are looking for the decrease in money per desk purchased. Because the x-axis is the number of desks purchased, what we have to find is the (opposite) of the slope. The formula to represent slope can be written as:

`(y_(2) -y_(1) )/(x_(2)- x_(1) )`

We can substitute the points given, (2, 480) and (5, 150) and simplify:

`(150-480)/(5-2) =(-330)/(3) = -110`

We would multiply by -1 because we are asking for the decrease, and negative increase is decrease. -1 * -110, gives us $110