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Help!!! On geometry all help is appreciated

Help!!! On geometry all help is appreciated-example-1
Help!!! On geometry all help is appreciated-example-1
Help!!! On geometry all help is appreciated-example-2
User Simcha
by
8.7k points

1 Answer

5 votes

(1)

we are given two points

A=(-3,-4)

B=(2,0)

and point P
(-1, -(12)/(5) ) partitions AB

Let's assume it partitions into m:n

so, we get


(AP)/(PB)=(m)/(n)

so, we can write our point as


(-1,-(12)/(5) )=((2m-3n)/(m+n),(0m-4n)/(m+n))

now, we can set x-value to x-value

and y-value to y-value

and then we can solve for m and n


-1= (2m-3n)/(m+n)


-(12)/(5) =(0m-4n)/(m+n)

now, we can solve for m/n


-m-n=2m-3n


3m=2n


(m)/(n) =(2)/(3)

so, option-C.........Answer

(2)

we are given points as

J=(10, -2)

N=(-4 ,6)

Let's assume mid-point between J and N as M

so, we get


M=((10-4)/(2),(-2+6)/(2))


M=(3,2)............Answer



User Hamchapman
by
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