Question

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Answer 1

Question?

Answer 2

whats the question?

Answer 3

Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.?
x y
7 11
8 13
9 15
10 17

Answer 4

@mathmath333

Answer 5

\(\large \begin{align} \color{black}{\normalsize \text{y varies directly with x , then} \hspace{.33em}\\~\\
y\alpha x \hspace{.33em}\\~\\
y=k x \hspace{.33em}\\~\\
\normalsize \text{check for }(x,y)\implies (7,11) \hspace{.33em}\\~\\
11=k\cdot 7 \hspace{.33em}\\~\\
k=\dfrac{11}{7} \hspace{.33em}\\~\\
\normalsize \text{similarly check for }(x,y)\implies (8,13) \hspace{.33em}\\~\\
\normalsize \text{if k is sames as } \dfrac{11}{7} \hspace{.33em}\\~\\
\normalsize \text{then it is varies directly , if not it doesn't varies } \hspace{.33em}\\~\\
}\end{align}\)