Question

Oscar owns an apartment building. He regularly rents a carpet cleaning machine. He can't remember what it costs, but he found receipts of the last 3 times he rented. He knows there is a set price plus a charge for each bottle of shampoo he purchases. The scatter plot below shows the data from his last 3 rentals and a line that fits the data. He will use the equation of the line to predict different costs.



Which of the following statements are valid representations of the meaning of the 24 in the equation of the line?

Answer 1

Valid Not Valid
A 24 is the predicted increase, in dollars, of the cost with each bottle of shampoo purchased.
B 24 is the predicted cost, in dollars, of renting the machine with no bottles of shampoo.
C 24 is the y-intercept of the prediction line.
D 24 is the slope of the prediction line.

Answer 2

B is true
C is true as well
and D is false
@Directrix

Answer 3

What about part A?

Answer 4

I would say False but not sure

Answer 5

Evaluate y = 4x + 24 for x = 1 and then for x = 2.

Do the resulting y values differ by 24? Yes or No?

Answer 6

For x = 1, y = ?

For x = 2, y = ?

Post what you get, okay?

Answer 7

1 y=28
2 y=32

Answer 8

Is 32 - 28 = 24 ? Did the total cost go up by $24 when the number of bottles of shampoo went up by one?

Answer 9

no 32-28=4

Answer 10

wait think about it

Answer 11

So, A is False

Answer 12

so my guess was correct :)

Answer 13

On my paper,

F
T
T
F

Answer 14

it is 4

Answer 15

The last time you guessed on that type question, the answer was wrong.

>>so my guess was correct :)

Answer 16

she said 4 you said 24

Answer 17

thank you very much :)

Answer 18

You are welcome. Let's roll on.