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Helga [31]
3 years ago
14

What is the equation in point-slope form of the line that passes through the point (-2, 7) and has a slope of 3?

Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer:

y-7=3(x+2)

Step-by-step explanation:

Point Slope Form is:

y-y_1=m(x-x_1)

We are given the point of (-2, 7) and the slope of 3.

Plug in the appropriate values:

y-y_1=m(x-x_1)\rightarrow \boxed{y-7=3(x+2)}

Hope this helps.

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Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. Th
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Answer:

The labor fee is $14.25, each quart of oil costs $2.25.

Step-by-step explanation:

Let $x be thee price of each quart of oil and $y be a flat fee for labor.

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3. Subtract from the second equation the first one, then

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Substitute it into the first equation:

5\cdot 2.25+y=25.50,\\ \\y=25.50-11.25,\\ \\y=\$14.25.

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