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Alexxx [7]
2 years ago
11

Rewrite the equation y – 4x = –9 in slope-intercept form. simple explanation and proof

Mathematics
2 answers:
Strike441 [17]2 years ago
7 0

Answer:

The slope-intercept form of this equation would be y = 4x - 9.

(For explanation look down below)  

Step-by-step explanation:

Slope-intercept form would be an equation that would look like...

y = mx + b

Where m is the slope and b is the intercept. From this form, we can understand that all we need to do is rearange the formula in a way that positive y would be on its left side. And so we get...

y - 4x = - 9

y - 4x + 4x = - 9 + 4x

y = 4x - 9

dusya [7]2 years ago
4 0

Answer:

y=4x-9

Step-by-step explanation:

add 4x to both sides to isolate y

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sergiy2304 [10]

Answer:

A line segment has two endpoints. It contains these endpoints and all the points of the line between them. You can measure the length of a segment, but not of a line. Line segments are only a line that goes from one point to another, and lines go on forever. However, a line segment is also part of a line.

Hope this helps!

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2 years ago
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Eddie took out a 14-year loan for $72,000 at an APR of 4.7%, compounded monthly, while Lee took out a 14-year loan for $92,000 a
marishachu [46]
**Eddie: $72000/(14yr*12mo)=428.6$/mo+428.6$*(4.7%)/100%
Eddie pays 428.6$/mo+20.14$/mo. If he pays off his loan 6 years earlier he would save: $20.14*6yr*12mo= $1450.08
**Lee: $92000/(14yr*12mo)=547.62$/mo+547.62$*(4.7%)/100%
Lee pays 547.62$/mo+25.74$/mo. If he pays off his loan 6 years earlier he would save: $25.74*6yr*12mo=$1853.28

So its A. <span>Lee would save more, since he has $20,000 more in principal.</span>
4 0
3 years ago
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What is the difference of the given values to the correct level of precision?
kari74 [83]

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22.108 L - 5.80 L = 16.308 L

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I need to know the answer to the question in the picture
stiks02 [169]

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3 years ago
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Let X and Y denote the values of two stocks at the end of a five-year period. X is uniformly distributed on the interval (0, 12)
Paladinen [302]

Answer:

Cov (X,Y) = 6

Step-by-step explanation:

hello,

Cov(X,Y) = E(XY) - E(X)E(Y)

we must  first find E(XY), E(X), and E(Y).

since X is uniformly distributed on the interval (0,12), then E(X) = 6.

next we find the joint density f(x,y) using the formula

f(x,y) = g(y|x)f_{X}(x)

f_{X} (x) = \frac{1}{12}  \  $for$\   0 this is because f is uniformly distributed on the the interval (0,12)

also since the conditional probability density of Y given X=x, is  uniformly distributed on the interval [0,x], then

g(y|x)=\frac{1}{x}  for 0≤y≤x≤12

thus

f(x,y)=\frac{1}{12x}.

hence,

E(X,Y)= \int\limits^{12}_{x=0}  \int\limits^x_{y=o} xy\frac{1}{12x}  \,dy dx

E(X,Y)=\frac{!}{24} \int\limits^{12}_{x=0} x^2 \, dx  = 24

also,

E(Y) = \int\limits^{12}_{x=0}  \int\limits^x_{y=0}  y\frac{1}{12x}  \, dydx

E(Y)=\frac{1}{24}\int\limits^{12}_{x=0} {x} \, dx  =3

thus Cov(X,Y) = E(XY) - E(X)E(Y)

                      =  24 - (6)(3)

                      =     6

             

3 0
3 years ago
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