The coordinates of point J are(-7,2) , and the midpoint of JK is at L(3,5). What are the coordinates of point K? A. (8,3)

B. (4,-2)

C. (13,8)

D. (-1,12)

C. (13,8)

Step-by-step explanation:

Midpoint formula is (x²+x¹ /2 , y²+y¹ /2 )

Midpoint= L(3,5)

J(-7 , 2) ; K(x , y)

(3,5) = (x+-7 /2 , y+2 /2)

x-7 /2 = 3

x-7 = 6

x= 13

y+2 /2 =5

y+2 = 10

y= 8

Therefore K is K(13, 8)

(13,8)

Step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

b. 2 and 4

step-by-step explanation: