Please Help! Look at attachments.

As you can see Plumber  A has a greater initial fee or greater y-intercept .so the answer is D.

Step-by-step explanation:

We know that plumber A has a initial fee of 100 but we need to find the initial fee and slope for plumber B.

(1,105) ( 2,160)

160 - 105 = 55

2-1 = 1                  

55/1 =5 so the slope for plumber B is 55

105 = 1(55) + b   this is the formula used to find the y-intercept

105 = 55 + b

-55     -55

b= 50

So the equation for Plumber B is y = 55x + 50

Now compare equations y=55x + 50 and y= 30x + 100

b

step-by-step explanation: