Question

Part A: Sam rented a boat at $225 for 2 days. If he rents the same boat for 5 days, he has to pay a total rent of $480.

Write an equation in the standard form to represent the total rent (y) that Sam has to pay for renting the boat for x days.
ANSWER: f(x)= 85x+55
charge a fee of 55 bucks + 85 days per day of rental

Part B: Write the equation obtained in Part A using function notation.
ANSWER: {x + 2 y = 225, x + 5 y = 480}
{x = 55, y = 85}

Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals.

Answer 1

I Need help with part C please

Answer 2

@Johnbc @hartnn

Answer 3

Part A
minor correction
charge a fee of 55 bucks + 85 days per day of rental
should be $85/day + $55
The question said write the equation in standard form, Ax + By = C
therefore
total cost of rental - $85/per day = $55
y - 85 x = 55

Answer 4

Part B
f(x) =85 x + 55 { x: x>0 } y >55
f(0)=55 f(2) = 225 f(5) = 480
(2, 225) (5, 480)

what is set notation?
could you explain this?
{x = 55, y = 85}

Answer 5

Part C
slope = 85
y-intercept = 55
you have 3 points on the line
graph showing total cost of rental , dependent variable, y vs number of days rented, independent variable, x

on the y-axis the units/scale could be $100 because for each day the added cost is $85
the x axis, days the unit is one