if y varies directly as x, and y is 12 when x is 1.2, what is the constant of variation for this…
if y varies directly as x, and y is 12 when x is 1.2, what is the constant of variation for this relation?\n1\n10\n10.8\n14.4
Answer
Answer:
B. 10
Explanation:
Step1: Recall direct - variation formula
The formula for direct variation is $y = kx$, where $k$ is the constant of variation.
Step2: Substitute given values
We know that $y = 12$ and $x = 1.2$. Substituting into $y=kx$ gives $12=k\times1.2$.
Step3: Solve for $k$
To find $k$, we divide both sides of the equation by $1.2$: $k=\frac{12}{1.2}=10$.