Asked by help
Does the equation 7x-4y=0 represent a direct variation? If so, find the constant of variation.
A) yes; k= 7/4
B) yes, k=-4
C) No ( i think c)
D) yes; k=-7/4
A) yes; k= 7/4
B) yes, k=-4
C) No ( i think c)
D) yes; k=-7/4
Answers
Answered by
Reiny
If you have an equation of the form y = mx + b, and b = 0
then you have a direct variation
So for yours:
7x-4y=0
-4y = -7x
y = (7/4)x , no b value, so .....
then you have a direct variation
So for yours:
7x-4y=0
-4y = -7x
y = (7/4)x , no b value, so .....
There are no AI answers yet. The ability to request AI answers is coming soon!