Is y= -4/x a linear equation?

2 Answers
Aug 2, 2018

The given equation is not linear because the power of x is not 1 but - 1.

Explanation:

Given -

y=-4/x

The given equation is not linear because the power of x is not 1 but - 1. Let us rewrite the equation as -

y=-4x^(-1)

Look at this graph of the given equation.
enter image source here

Aug 2, 2018

" "
No.

y= -4/x is NOT a linear equation.

It is a reciprocal equation.

Explanation:

" "
Given:

color(red)(y=f(x)=( -4/x)

Generate a data table as shown below:

enter image source here

Display just the color(red)(x and y columns for graphing:

enter image source here

Graph both the parent reciprocal function and the given function for the purpose of comparison:

enter image source here

y=f(x)=1/x

is a reciprocal function and it represents a hyperbola.

It is also an odd function.

The function's domain is all real values, except zero.

It is also very obvious, examining the graph:

For the parent function : y=f(x)=(1/x)

Horizontal and Vertical Asymptotes: color(red)(x=0 and y=0

For the given function : y=f(x)=(-4/x)

Horizontal and Vertical Asymptotes: color(red)(x=0 and y=0

Hope it helps.