Question

Hi please check my answers.. I want to make sure Part A and B are correct. Can someone also help with part C?

Answer 1

Here is the problem:

Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625.

Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x days. (4 points)

Part B: Write the equation obtained in Part A using function notation. (2 points)

Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals. (4 points)

Answer 2

your answer is correct

Answer 3

@mya1234567890 I havent even posted it yet

Answer 4

Here is my answer:

Part A:

x = days and y = total rent
Two points: (5,465) and (7,625)
Find the slope using those two points.

(625 - 465) / (7 - 5) = 160/2 = 80

Then use m = 80 and one of the points to write the equation of the line in point-slope form:

y - y(1) = m(x - x(1)
y - 465 = 80(x - 5)

convert:
y = 80(x - 5) = 465
y = 80x - 400 = 456
y = 80x = 65
7 - 80x = 65


Part B:

f(x) 80x + 65

Answer 5

okay i belive that

Answer 6

A and B are correct

Answer 7

Thank you. Does anyone know part C?

Answer 8

just use x-values to represent the days and the output will represent the cost.

So for example if you plug in 1 in the formula, you would get 80 + 65 = 145 $ which is the cost of one night.

then 80 + 130 = 210, which is the cost of the second night and so on.


After plugging in all the points you should notice that this is a linear function.. if this makes any sense :)

Answer 9

Hold on I got something different for part A: 80x - y = -65

Answer 10

Part B is the same.
Part C:

f(x) = 80x =65
solve for f(6)

First substitute x for 6
f(6) = 80(6) + 65
next, solve 80(6)
f(6) = 480 = 65
then add 64
f(6) = 545

(6, 545)

Solve for f(4)

First, subsistute x for 4
f(4) = 80(4) = 65
Next, solve 80(4)
f(4) = 320 = 65
then add 64
f(4) = 385

(4, 385)

Answer 11

Would that be correct @BruhObamaCare

Answer 12

yes :)

Answer 13

@BruhObamaCare thank you so much!

Answer 14

anytime :)