Answer:
Step-by-step explanation:
The first function:
\(y=3[x]\)
is the greatest integer function.
Greatest integer function is denoted by [ ].
The second function:
\(y=3x^2\)
is the quadratic function.
Quadratic function is of degree 2.
The third equation
\(y=2.5x\)
is the direct variation.
Because when y is increasing x is also increasing they have same behavior hence, direct variation.
The fourth function
\(y=-1.5\)
is constant.
The value is not changing hence, constant.
The fifth function:
\(y=\frac{4}{x}\)
is inverse variation since, y is increasing then x is decreasing they have opposite behavior.
