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Rzqust [24]
2 years ago
10

What graph shows a proportional relationship between x and y?

Mathematics
2 answers:
Kazeer [188]2 years ago
7 0
I believe it would have to be the second graph as a proportional relationship has to make a straight line that passes through the origin
horrorfan [7]2 years ago
5 0

Answer:

second graph

Step-by-step explanation:

the line running at same rate

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Please help ASAP!!! Thank you so much!!! Just want confirm my answer it is y=150x-50. A concession stand at a football game took
jekas [21]

Answer: You have the correct answer. It is y = 150x-50

Nice work on getting the correct answer. For anyone curious, the explanation is below.

=============================================

x = number of hours the stand is open

y = amount earned

(1,100) is from the fact the stand is open 1 hour and earns $100

(3,400) is due to the stand earning $400 after 3 hours.

Slope Formula

m = (y2 - y1)/(x2 - x1)

m = (400-100)/(3-1)

m = 300/2

m = 150 is the slope, and it is the amount earned per hour. It is the rate of change.

Use m = 150 and (x,y) = (1,100) to find the value of b as shown below

y = mx+b

100 = 150(1) + b

100 = 150 + b

100-150 = b

-50 = b

b = -50 is the y intercept and it is the starting amount they earn. The negative earning indicates that they spent $50 to set up the stand, which is the cost of buying the food, equipment, etc.

So we have m = 150 as the slope and b =  -50 as the y intercept.

Therefore, y = mx+b turns into y = 150x-50.

-------

As a check, plugging in x = 1 should lead to y = 100

y = 150x-50

y = 150(1)-50

y = 150-50

y = 100 and indeed it does

The same should be the case with (3,400). Plug in x = 3 and we should get y = 400

y = 150x-50

y = 150(3)-50

y = 450-50

y = 400, we have confirmed the answer by showing that the line y = 150x-50 goes through the two points (1,100) and (3,400).

3 0
3 years ago
What is 0.7, 47.9, 18.08, 125.023, 0.126, and 150.075 in word form?
mario62 [17]
Seven tenths Forty seven and nine tenths Eighteen and eight one hundredths One hundred twenty five and twenty three thousandths One hundred and twenty six thousandths One hundred fifty and seventy five thousandths
7 0
3 years ago
PLEASE HELP ME WITH THIS ASAP
Arte-miy333 [17]
Eddie: $10-3=$7
Marsha: $8+$3=$11
7 0
2 years ago
DESPERATE WILL GIVE BRAINLIST AND THANKS
Anna35 [415]

Answer:

1345

Step-by-step explanation:

5 0
3 years ago
Look at the pic in the corner it’s math
Schach [20]

Answer:

The third one

Step-by-step explanation:

Its because we need to find the number that it has grown.

so we add the number that it grew to the size it was before.

6 0
3 years ago
Read 2 more answers
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