**Answer:**

**Step-by-step explanation:**

9514 1404 393

**Answer:**

(a) y = -3/4x +36

**Step-by-step explanation:**

The slope of the rail is ...

m = rise/run = -9/12 = -3/4

The initial height of the rail is 36, so the slope-intercept equation for the rail is ...

y = mx +b . . . . . m = slope; b = initial value

** y = -3/4x + 36**

we know that

**Domain:**

Domain is all possible values of x for which any function is defined

For finding domain from any graph , firstly we will find smallest x-value and then largest x-value of curve

and that would be domain

Here , we have

smallest x-value is -3

but there is a hole at x=-3

so, function is not defined at x=-3

largest x-value is 1

so, domain would be

**.................Answer**

205,000*0.15=<span>**30750**

0.15 is the down payment

205,000 is the full price</span>