Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.
if y varies directly as x and z, and y =4 when x - 6 and z = 1, find y when x = 7 and z = 4
c. y = -xz; (7,4) -42
b. y - 12 v (7,4) - 2 -
d. y - xz; (7,4) –
select the best answer from the choices provided

my apex says that it is false

the correct answer is c) 2.

c. he organized a political resistance group based on islam.

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16