Which of the following is the equation of a direct variation that has a constant of variation equal to -1/2?

A. y= x- 1/2
B. -1/2 y=x
C. y= -2x
D. y= -1/2x

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Find the value of x. give reasons to justify your solutions! l, m ∈ kn