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A line passes through the point (-1, -9) and has a slope of -7.

What would be the equation for this line?

1 Answer

5 votes

Answer:

y = -7x - 16

Explanation:

The formula for the equation of a line is y=mx+b, where m is the slope and b is the y-intercept. Since we already know the slope, all that is left is the value of b, which can be found by substituting the values of the point (-1, -9) into the equation and solving:


-9=-7(-1)+b


-9=7+b


b=-9-7=-16

With this, we get the value -16, making the equation y = -7x - 16

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