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8_murik_8 [283]
4 years ago
12

A line passes through the points (-1, -6) and (-4, 3). What is the equation of this line in slope-intercept form?

Mathematics
1 answer:
g100num [7]4 years ago
4 0

Since we have two ordered pairs, we can find the slope by plugging them into (y2-y1)/(x2-x1) which translates to (3-(-6))/(-4-(-1))=9/-3=-3

Since the slope is -3, we have the equation y=-3x+b, but we don't know b. So we plug in values for x and y and solve for b.

-6=-3(-1)+b

-6=3+b

-9=b

So the y-intercept is -9 and the full equation is y=-3x-9 which means A is the only correct answer.

Hope this helped!

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