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Zigmanuir [339]
3 years ago
12

I NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Anon25 [30]3 years ago
8 0

1) A: The first table

2) B: The water level increases by 2 inches each hour.

Hope this helps

RideAnS [48]3 years ago
3 0

Answer:

Question 1). table 1

Question 2). Option B

Step-by-step explanation:

Question 1). If we analyse graph 1 we find a straight line of which we have to find the equation first.

Since the equation of any line is represented by y = mx + c

where m = slope of the line

c = y- intercept

Graph 1 shows line has no y-intercept (passing through origin) so c = 0

and the equation will be y = mx

Now slope m = \frac{y-y'}{x-x'}

In graph 1 line is passing through two points (3, 1) and (0, 0).

Therefore m = \frac{1-0}{3-0}=\frac{1}{3}

Finally equation of the line is y=\frac{1}{3}x

or x - 3y = 0

Now we plug in the values of x and y from graph 2, table 1

For (-3, -1)

-3 - (3)(-1) = -3 + 3 = 0

So table 1 is the answer.

Question 2). In this question we have to describe the pattern showing the relation between x and y.

In other words we have to find the slope of the line which describes flow of water y in x hours.

Slope = \frac{y-y'}{x-x'}

Here the line is passing through two points (0, 0) and (1, 2)

By putting the values in the formula of slope

m= \frac{2-0}{1-0}=2

So water level in the cup is increasing by 2 inches per hour.

Option B. is the answer.

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