Home > Algebra > Direct Variation

Is #y=2x-9# a direct variation equation and if so, what is the constant of variation?

Answer 1

Julia Adams

#"not direct variation"#

#"the standard form for a direct variation equation is"#

#•color(white)(x)y=kxlarrcolor(blue)"k is the constant of variation"#

#y=2x-9" is not in this form"#

#"so is not a direct variation equation"#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Genesis Allen

#"not direct variation"#

#"the standard form for a direct variation equation is"#

#•color(white)(x)y=kxlarrcolor(blue)"k is the constant of variation"#

#y=2x-9" is not in this form"#

#"so is not a direct variation equation"#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 3

Nathan Axel

Yes, ( y = 2x - 9 ) is a direct variation equation. The constant of variation ( k ) in this equation is 2.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.