Question

is\[ y=\sqrt{x-5+9} \] linear is\[ y=\sqrt{x-5+9} \] linear @Mathematics

Answer 1

Since it has a square root, no.

Answer 2

no
y is quadraticaly increasing

Answer 3

f(x)=-2xy+13 linear ?

Answer 4

no, not a linear function.
x y
1 6.5
2 3.25
3 2.2
it is not linearly decreasing