**Answer:**

3

**Step-by-step explanation:**

Select an ordered pair: (2, 7)

Select another ordered pair: (6, 19)

slope = (difference in y)/(difference in x)

slope = (19 - 7)(6 - 2)

slope = 12/4

slope = 3

5.50 because anything after a number that is zero means nothing

**Answer:**

The answer is not in the options, it is 67.5

**Step-by-step explanation:**

135/2 = 67.5

**Answer:**

y=-1/4x+2

**Step-by-step explanation:**

y=mx+b

M=slope

B= y intercept