Question

Medal+Fan!

Answer 1

Joseph owns a store. One week, his store’s revenues totaled $4200. For the next 5 wk, his store’s revenues decreased by $120/wk.

What is the slope of the line that models this situation?

A.
−5

B.
−24

C.
−35

D.
−120

Answer 2

I think the answer is D. but I am not so sure..

Answer 3

@RhondaSommer

Answer 4

You're right

Answer 5

Can you explain how to get the answer? :/

Answer 6

D. because the money is decreasing by 120 per week in 5 weeks

Answer 7

Wanna do step by step math?

Answer 8

Yes.

Answer 9

So the owner loses 120 a week for 5 weeks. So to find how much he lost during those 5 weeks, you would multiply those two numbers

What do you get?

Answer 10

If I multiply 120 with 5 I get 600

Answer 11

Exactly,

So next, subtract 4200 and 600 to find out how much he made week 6 (5 weeks after)

Answer 12

3,600?

Answer 13

Right, now we have everything to find slope

Slope is y2-y1
--------
X2-x1


Plugging in those number we get

3600-4200
------------------
6-1

Subtract the 3600 and 4200 to get y
Subtract the 6 and 1 to get X

Then divide y. To get your answer
-
x.

Answer 14

Thank you! :) Can you help me with more?