linear equations

Question

is this equation linear or not. y=kx

Answer 1

Linear equations are written in the form

 

y = mx + b

 

 

where:

m = slope

b = y-intercept

 

In this case, k is the slope and zero is the y-intercept.

Answer 2

Yup! "Linear" means the degree of the function is 1. (The degree of a function is the highest exponent that you see an x raised to. For example, y=x^2+4 has degree 2, y=3x^3+2x^2+x+1 has degree 3, etc)

 

y=kx where k is a constant, is linear because it has degree 1.

 

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