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wolverine [178]
2 years ago
5

Pls help me im so confused and i need this done!

Mathematics
2 answers:
lawyer [7]2 years ago
5 0

Answer:

y = (1/3)x - 9

Step-by-step explanation:

We know that m = 1/3

The function will be in the form:

y = (1/3)x + b

Let's find b by plugging in the coordinates of the point, in the function:

-7 = (1/3)*6 + b

b = -9

Therefore:

y = (1/6)x - 9

Shalnov [3]2 years ago
4 0

Answer:

y + 7 =  \frac{1}{3} (x - 6)

Step-by-step explanation:

using equation y=mx+c where y is -7, x is 6 and m is 1/3

equate them in the equation to work out c

y = mx + c

- 7 =  \frac{1}{3} (6) + c

1/3 × 6 is 2

- 7 = 2 + c

subtract 2 on both sides to find c

- 7 - 2 = c

c =  - 9

The equation is

y =  \frac{1}{3} x - 9

based out of the following options you have:

i would expand each equation you have and equate it in y=mx+c to see where you have the same equation as above.

It looks like the third option is correct:

writing out the third option

y + 7 =  \frac{1}{3} (x - 6)

expanding the right side my multiplying. 1/3 × x is 1/3x. 1/3 × -6 is -2

y + 7 = \frac{1}{3} x - 2

subtract 7 on both sides so you have y on its own

y =  \frac{1}{3} x - 2 - 7

y =  \frac{1}{3} x - 9

so the third option is the same equation as y=1/3x - 9

answer:

y + 7 =  \frac{1}{3} (x - 6)

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