Question

Assume that y varies directly with x. If x=5 when y=-8 find x when y=16

Answer 1

Is it -10? Because -8 to 16 is multiplying by -2, so 5 x -2 = -10. I'm not sure though because I don't know exactly what 'varies directly' means.

Answer 2

The answer would be ×=-10. Because 2y would be equal to 2x. 2x= (-5*2)