Value of y is -4.356 when x = 6.6
Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal.
y varies directly with x,
Let variation constant = k
y =kx,
y = -6.6 and x=9.9
-6.6 = k(9.9),
k = -6.6/9.9
So k = -0.66
The variation equation is y = -0.66x
Substitute the value of x=6.6 in above equation
y = -0.66×6.6
y = -4.356
Hence, value of y is -4.356 when x = 6.6
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