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MakcuM [25]
3 years ago
11

1. Graph: y = 3x please help

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
8 0

Answer:

[see below]

Step-by-step explanation:

Find two points that would satisfy the equation.

When x = 1:

y=3(1)\\\\y=3

One point would be (1, 3).

When x = 2:

y=3(2)\\\\y=6

Another point would be (2, 6).

Graph the points (1,3) and (2,6) and draw a line crossing through them.  

Hope this helps.

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What is the equation of the line in the following graph? 1)y=x+2
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The slope-intercept form:

y=mx+b

m - slope

b - y-intercept

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have two points (2, 0) and (-2, -4). Substitute:

m=\dfrac{-4-0}{-2-2}=\dfrac{-4}{-4}=1

Therefore we have the equation of a line

y=1x+b\to y=x+b

Put the coordinates of the point (2, 0) to the equation:

0=2+b     <em>subtract 2 from both sides</em>

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Answer: \boxed{y=x-2}\to\boxed{3)}

8 0
3 years ago
a total of 695 tickets were sold for the school play. They were either adult or student tickets. There was 55 fewer students tic
FinnZ [79.3K]

Answer:

375 + 320

Step-by-step explanation:

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320 students

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2 years ago
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5 0
3 years ago
Read 2 more answers
A family swimming pool holds 61 m3 of water. It loses 0.27m3 of water to evaporation each day. This situation can be represented
Bezzdna [24]

Answer:

The answer to your question is: when x = 100 days, y = 34 m³

Step-by-step explanation:

Data

Volumen = 61 m³

Loses 0.27 m³ each day

Equation    y + 0.27x = 61

when x = 100, y = ?

Process, just substitute x in the equation and solve it for y

                  y + 0.27(100) = 61

                  y + 27 = 61

                  y = 61 - 27

                  y = 34 m³

It means that after ten days, the swimming pool will only have 34 m³, because 27 m³ will have evaporated.

7 0
3 years ago
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