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?