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Lilit [14]
3 years ago
11

Please help me with number 1

Mathematics
1 answer:
andreev551 [17]3 years ago
7 0

If I’m correct, then the answer is D. Someone please correct me if I’m wrong.

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Twice the sum of a number and 3 is 20.
tamaranim1 [39]

Answer:

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Given:

The equation of a line is:

y=-\dfrac{5}{7}x+2

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To find:

The equation of the line.

Solution:

Slope intercept form of a line is:

y=mx+b                 ...(i)

Where, m is the slope and b is the y-intercept.

We have,

y=-\dfrac{5}{7}x+2          ...(ii)

On comparing (i) and (ii), we get

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Slope of the required line is \dfrac{7}{5} and it passes through the point (-5,-3). So, the equation of the line is:

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y-(-3)=\dfrac{7}{5}(x-(-5))

y+3=\dfrac{7}{5}(x+5)

Using distributive property, we get

y+3=\dfrac{7}{5}(x)+\dfrac{7}{5}(5)

y+3=\dfrac{7}{5}x+7

y=\dfrac{7}{5}x+7-3

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Therefore, the equation of the line is y=\dfrac{7}{5}x+4. Hence, option A is correct.

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3 years ago
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Answer:

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