Question

Y =4.2x is it a linear or exponential

Answer 1

`y = 4.2x` is a linear equation.

Explanation:

The slope-intercept form of the line or linear equation is of the form

`y = mx+b`

where

`m` represents the slope

represents is the y-intercept

In our case, the given equation is

`y = 4.2x`

comparing with the slope-intercept form of the line or linear equation

`y = mx+b`

Thus,

• The slope of the equation will be: m = 4.2

• The y-intercept of the equation will be: b = 0

As the equation
`y = 4.2x` resembles the linear equation
`y = mx+b` of the line.

Hence,
`y = 4.2x` is a linear equation.

Please also check the attached graph of the linear equation
`y = 4.2x` .

Important Tips:

• We know that the graph of the linear equation is a straight line. Thus, the graph of the linear equation
  `y = 4.2x` will be a straight line.

• As the y-intercept of the linear equation is zero, Thus, the line
  `y = 4.2x` will pass through the origin (0, 0). It is also clear from the attached graph.

∴
`y = 4.2x` is a linear equation.

Answer 2

I believe the answer is exponential because you are multiplying and usually with exponential equations the line is increasing majorly