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AysviL [449]
2 years ago
13

Write an equation of the line shown.

Mathematics
2 answers:
anzhelika [568]2 years ago
7 0
Y = 2x + 9

2 is the slope which is rise over run or y2 - y1 over x2 - x1

9 Is the y intercept
koban [17]2 years ago
7 0

Answer:

y = -2x + 9

Step-by-step explanation:

So we know that the line is going down, so that means that slope will be negative. Additionally we know that the y-intercept is 9 because that's where the line crosses the y-axis.

To find slope based on the graph, you can start from the left most point and do rise/run until you get to the next point. In this case, you'd start from (0,9) go down 2 units and over to the right 1, so your Slope is -2/1 or just -2.

So it would be written as y = -2x + 9.

Hope this helps :)

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How many meters are in 20 yards ?
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Answer:

18.288

Step-by-step explanation:

4 0
3 years ago
Find 3/4ths of 40 ......................................................
Mkey [24]
30. 

3/4 is equal to 75%, so take 75% of 40 by multiplying .75 by 40 to get 30
5 0
2 years ago
Read 2 more answers
Having trouble with this one can somebody help?
Varvara68 [4.7K]
Form equation
y = mx + c
y = (rise/run).x + c
y = (11-1 / 3--2)x + c
y = 2x + c
11 = 2(3) + c
Find c (y-intercept)
11 - 6 = c
c = 5
Final equation of line
y = 2x + 5
Substitute given possible x-values in to find y-values
y = 2(1) + 5 = 7 (1,7)
y = 2(2) + 5 = 9 (2,9)
Therefore d is correct
3 0
2 years ago
The function f(x)=125(0.9)x models the population of a species of fly in millions after x years.
deff fn [24]

Answer: (B) 3 times as fast

<u>Step-by-step explanation:</u>

rate of change is the "slope" between the given interval.

f(x) = 125(.9)ˣ

f(1) = 125(.9)¹

    = 112.5

f(5) = 125(.9)⁵

     = 73.8

\dfrac{f(5) - f(1)}{5 - 1} = \dfrac{73.8-112.5}{5-1} = -\dfrac{38.7}{4} = -9.675

********************

f(11) = 125(.9)¹¹

       = 39.2

f(15) = 125(.9)¹⁵

       = 25.7

\dfrac{f(15) - f(11)}{15 - 11} = \dfrac{39.2-25.7}{15-11} = -\dfrac{13.5}{4} = -3.375

********************

The rate of change from years 1 to 5 is approximately 3 times the rate of change from years 11 to 15.

7 0
3 years ago
Please help my assignment
m_a_m_a [10]
There is no solution since ln(0) is undefined
3 0
2 years ago
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