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Tanzania [10]
3 years ago
14

Suppose y varies directly with x. If y=-20 when x=2, find y when x=14

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
8 0
\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=-20\\
x=2
\end{cases}\implies -20=k2\implies \cfrac{-20}{2}=k
\\\\\\
-10=k\qquad therefore\qquad \boxed{y=-10x}
\\\\\\
\textit{when x = 14, what is \underline{y}?}\qquad y=-10(14)
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Write an absolute value inequality for the graph below GRAPH ADDED. Please reply with correct answer 1/3
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<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.

The absolute value is given by:

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Find out more on equation at: brainly.com/question/2972832

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