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german
2 years ago
15

Find the slope and the y-intercept of the graph of the linear equation y=5/4x-7. The slope is ?, and the y-intercept is ?.

Mathematics
2 answers:
Tanya [424]2 years ago
7 0

Answer:

5/4 slope

-7 y intercept.

Step-by-step explanation:

The slope is the number in front of the x. The number in front of the x is 5/4. The slope is 5/4

1. The y intercept is whatever is behind the x or 0 if there is no number following the x.  

2. The y intercept is also characterized by being on the same side of the equation as the x.

3. Finally it has no x in it.

In this case the y intercept is -7

Examples

y + 2 = x    2 is not the y intercept. subtract 2 from both sides. y = x - 2. Therefore -2 is the y intercept.

2y = 4x + 6                4 is not the slope. You have to divide by y = 2x+3. So 2 is the slope and 0,3 is the y intercept.

babunello [35]2 years ago
3 0

Answer:

Not Linear.

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
A business was valued at £80000 at the start of 2013. In 5 years the value of this business raised to £95000. this is equivalent
Yuri [45]

the yearly increase of x% assumes is compounding yearly, so let's use that.

~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill &\£95000\\ P=\textit{original amount deposited}\dotfill &\£80000\\ r=rate\to r\%\to \frac{r}{100}\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{yearly, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases}

95000=80000\left(1+\frac{~~ \frac{r}{100}~~}{1}\right)^{1\cdot 5}\implies \cfrac{95000}{80000}=\left( 1+\cfrac{r}{100} \right)^5 \\\\\\ \cfrac{19}{16}=\left( 1+\cfrac{r}{100} \right)^5\implies \sqrt[5]{\cfrac{19}{16}}=1+\cfrac{r}{100}\implies \sqrt[5]{\cfrac{19}{16}}=\cfrac{100+r}{100} \\\\\\ 100\sqrt[5]{\cfrac{19}{16}}=100+r\implies 100\sqrt[5]{\cfrac{19}{16}}-100=r\implies 3.5\approx r

4 0
2 years ago
In a equation, y varies directly as x varies. If y = 84 when x = 14, what is the value of x when y = 120
xeze [42]

Answer:

I would like to say 20 but I'm not sure

4 0
2 years ago
The five-number summary for the lengths of songs, in minutes, performed by a popular music group is given below.
solmaris [256]

Answer:

Yes, 7.5 and 9.2 are outliers

Step-by-step explanation:

Given the 5 number summary :

Minimum: 1.8

Q1: 3.3

Median: 3.8

Q3: 4.5

Maximum: 9.2

To detect an Outlier use the Relation :

Lower bound : Q1 - 1.5*IQR

IQR = Q3 - Q1 = 4.5 - 3.3 = 1.2

lower bound : 3.3 - 1.5(1.2)

Lower bound = 3.3 - 1.8 = 1.5

Upper bound : Q3 + 1.5*IQR

Upper bound : 4.5 + (1.5 * 1.2)

Upper bound : 4.5 + 1.8 = 6.3

Hence,

1.5≤ x ≤ 6.3

Songs with length 7.5 and 9.2 do not meet the condition and are this outliers

7 0
3 years ago
Read 2 more answers
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