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Naya [18.7K]
3 years ago
6

The y-intercept or the line 7x-4y=8

Mathematics
2 answers:
Mila [183]3 years ago
8 0
First, you have to convert the equation into slope-intercept form. (A.K.A. get y alone on one side of the equation)

7x - 4y = 8
-7x        -7x

-4y = -7x + 8
----    ----------
-4          -4

y = -7/4x - 2

Now we can plug in 0 for x.

-7/4 * 0 is 0
0 - 2 is -2

The y-intercept is -2.

neonofarm [45]3 years ago
6 0
The answer would be y=(7/4)x-2. You just use reverse operations.
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faust18 [17]
This is my method of doing it, hope it helps.

5 0
3 years ago
What is the inverse of the function f(x) = 1/4x – 12?
arlik [135]
To find the inverse all you do is swap your x and y then solve it through. for this one you gotta take f(x) and make it y

y = 1/4x - 12

then swap

x = 1/4y - 12

then solve it through

x - 12 = 1/4y

divide by (1/4)

and (x - 12)4 = y should be your answer
6 0
3 years ago
Read 2 more answers
Un carpintero quiere cortar una plancha de triple y de 1m de largo y 60 cm de ancho, en cuadrados lo más grandes posibles. El ca
Ugo [173]

Answer: 20\ cm

Step-by-step explanation:

The first step to solve the exercise is to make the conversion from meters to centimeters.

Since 1\ m=100\ cm, then the dimensions of the wood board in centimeters are:

Lenght=100\ cm\\\\Width=60\ cm

Now, you must find the Greatest Common Factor (GCF). The steps are:

- Descompose 100 and 60 into their prime factors:

100=2*2*5*5=2^2*5^2\\60=2*2*3*5=2^2*3*5

- Multiply the commons with the lowest exponents:

GCF=2^2*5\\\\GCF=4*5\\\\GCF=20

Therefore, the side lenght of each square must be:

s=20\ cm

7 0
3 years ago
The questions is on the picture
allochka39001 [22]

Answer:

EASY:

Step-by-step explanation:

-7 > -12    

2 > -2

-5 < -3

|-9| is maybe 9.

|13| is 13.

|-5| is maybe 5.

5 0
3 years ago
Read 2 more answers
Plz help me and answer right
azamat
I think it might be 30 but I don’t know
3 0
2 years ago
Read 2 more answers
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