A few days ago

Anonymous

Find an equation of the line containing the given pair of points.?

(-3,-8) and (-7,-9)

The equation of the line is y=

(simplify your answer. use integers or fractions for any numbers in the expression.)

Top 3 Answers

A few days ago

Maverick

Favorite Answer

first find the slope (y2-y1)/(x2-x1)

-8-(-9) / (-3-(-7) = 1 / (4) or 1/4

so you now have y=-1/2x+b

use either of the points you have

-8 = (1/4)-3 + b

-8 = -3/4 + b

-7 1/4 = b

so y = -1/2x-7 1/4

now check other point

does -9 = (-1/4)-7 – 7 1/4

-9 = -7/3 – 7 1/4

-9 = -9 checks out so equation is valid

A few days ago

Beardo

slope = (-8 + 9)/(-3 + 7) = 1/4

so y = 1/4x – 7 1/4

or 4y = x – 29

A few days ago

Anonymous

y-y1=m(x-x1)

y+8=(1/4)(x+8)

y+8=x/4+2

(-x/4+y=-6)4

(-x+4y=-24)-1

x-4y=24

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