Which equations show direct variation between a and b?
choose ALL answers that are correct.
a. b=0.7a
b. b=1/8a-3
c. 5(1/a)=b
d. 1a=b

Question

Which equations show direct variation between a and b? 
choose ALL answers that are correct.
a. b=0.7a
b. b=1/8a-3
c. 5(1/a)=b
d. 1a=b

one098 · Answer

Do you know what direct variation is?

anonymous · Answer

no ):

one098 · Answer

It's alright, dont worry.

one098 · Answer

"When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation." http://www.freemathhelp.com/direct-variation.html

anonymous · Answer

but what would the answer be?

anonymous · Answer

not that direct variation increases with direct proportionality as the independent variable e.g
y=4x