Question

PLEASE HELP FAST I NEED 100% Contractor 3 gives Mrs. Solar the following fee table showing her charges for the contract work. a) What is the rate of change? What does this mean in a real-world context? (b) Write an equation in point-slope form to represent the total cost, y, given x hours. (c) Graph the equation written in Part (b). (d) What is the y-intercept? What does this mean in a real-world context? Answer:

Answer 1

I believe this is the answer

Answer 2

rate of change is the slope

slope = (y2-y1)/(x2-x1)

m= (180-120)/(3-2)

m = 60/1

m = 60

b.  point slope form

y-y1 = m(x-x1)

y-120 = 60 (x-2)

c see attached graph.  x>=0 since it is hours

d the y intercept is

y -120 = 60x-120

add 120 to each side

y = 60x