Question

Determine whether y varies with x, if so, find the constant variation of k and write the equation.

Answer 1

what is the equation for direct variation ?

Answer 2

X Y
4 6.4
7 11.2
10 16
13 20.8

Answer 3

@Nnesha

Answer 4

it increases by 1.8 each time..

Answer 5

y =kx equation for direct variation
you can solve for k so divide both sides by x \[\huge\rm \frac{ y }{ x }=k\]
now divide y by x if you get same number then yes

Answer 6

Thank you

Answer 7

\(\color{blue}{\text{Originally Posted by}}\) @Justmeneedinghelp
it increases by 1.8 each time..
\(\color{blue}{\text{End of Quote}}\)
by 1.8 or 1.something else ? :D

Answer 8

so k=what ?

Answer 9

1.6

Answer 10

yes right :=) good job!