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Igoryamba
3 years ago
8

Can someone help me with these?​

Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0

Answer:

Step-by-step explanation:

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2 years ago
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Equation of a line is in the form y = mx+c, where m is the gradient and c is the y-intercept.

First step is to find the gradient.

m = (y2-y1)/(x2-x1)
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We have y = (13/4)x + c

Now we replace one of the coordinates to find c. Let’s replace (4,-8)

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3 years ago
-5x+4y=3<br><br> x=2y-15<br><br><br> Solve for y and x
serious [3.7K]

Answer:

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Step-by-step explanation:

-5x+4y=3 --------A

x=2y-15----------B

Putting the value of x from B in A

-5(2y-15) +4y=3

-10y+75+4y=3

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-6y=-72

y=72/6= 12

Putting the value of y =12 in B

x= 2(12)-15

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