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3 years ago

10

FIND THE SLOPE OF ALL + y-intercept TO BE MARKED BRAINLIEST 1) y=-1/2x-1 2) y=5/2x-5 3)y=-7/4x-5 4)y3/2x-1 5)y=x+4 6)y=-1/5x+2

7)y2/5x-1 8)y-5/4x+5 9)y=1/2x+3 10)y=2x-5 11)y=-3x-1 12) y=-4x 13)y=-3/5x 14) y=3x+5 15)-9+6x=3y 16)-2x=y-1

1 answer:

CaHeK987 [17]3 years ago

6 0

Answer:

5

Step-by-step explanation:

i had this question

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Step-by-step explanation:

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$\left(\dfrac{8+x}{2},\dfrac{-7+y}{2}\right) =\left(\dfrac{4+8}{2},\dfrac{-7+(-3)}{2}\right)\\ \left(\dfrac{8+x}{2},\dfrac{y-7}{2}\right) =\left(\dfrac{12}{2},\dfrac{-10}{2}\right)\\ \left(\dfrac{8+x}{2},\dfrac{y-7}{2}\right) =\left(6,-5\right)\\$Therefore$:\\\dfrac{8+x}{2}=6\\8+x=12\\x=12-8\\x=4\\$Similarly$\\\dfrac{y-7}{2}=-5\\y-7=-5*2\\y-7=-10\\y=-10+7=-3$

The coordinates of the fourth vertex is D(4,-3)

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3 years ago