Home > Algebra > Direct Variation

How do you write a direct variation equation that relates the variables then graph if the total cost C of gasoline is $1.80 times the number of gallons G?

Answer 1

Hazel Anglin

If I got the idea of the question right you should get:
#C=1.8*G#

Calling #C# the cost of gasoline and #G# thenumber of gallons you get:
#C=1.8*G#

Graphically:

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

Answer 2

Ethan Adkins

The direct variation equation relating the total cost ( C ) of gasoline to the number of gallons ( G ) is given by ( C = 1.80G ). To graph this equation, plot points on a Cartesian plane where the x-axis represents the number of gallons ( G ) and the y-axis represents the total cost ( C ). Each point will be in the form ( (G, 1.80G) ). Connect these points with a straight line passing through the origin (0,0) since it's a direct variation.

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.