Question

Identify the type of function represented by each equation.

y= 3[x]
y= 3x^2
y=2.5x
y=-1.5
y= 4/x
are they
Greatest Integer, Joint ,Quadratic, Inverse Variation ,Constant, Direct Variation
please help

Answer 1

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=(4)/(x)`

is inverse variation since, y is increasing then x is decreasing they have opposite behavior.

Answer 2

The correct match for the functions presented are:

y= 3[x] : Direct Variation
y= 3x^2 : Quadratic
y=2.5x : Direct Variation
y=-1.5 : Constant
y= 4/x : Inverse Variation