Question

If y varies directly as the square of x and y= -54 when x= 9, then y= -1 1/3 when x= 6
Please select the best answer from the choices provided

T
F

Answer 1

Answer:

k1 = - 0.67

k2 = -0.1

Step-by-step explanation:

if y varies directly as the square of x

mathematically,

y ∝ x²

y = kx²...................................................................... where k is the constant of proportionality.

given that y = -54 and x = 9

y = kx²

k = y/ x²

k = -54/ 9²

k = -54/81

k1 = - 0.67

also, when y = -11/3 and x = 6

k = y/x²

k = -3.667/ (6)²

k = -3.667/36

k2 = -0.1

Answer 2

Answer:

False.

Step-by-step explanation:

going on a limb here, but ill come correct myself if im wrong but if its not changed then false should be correct.