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2 years ago

If (-2, y) lies on the graph of y = 3x, then y =?

Mathematics

2 answers:

algol132 years ago

8 0

Y=3x
you use the order pair to substitute therefore y= 3(-2)
y= -6 .

stellarik [79]2 years ago

7 0

Y=3x
y= 3(-2)
y = -6

So, (-2, -6)

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$\bf \displaystyle \int\limits_{0}^{28}\ \cfrac{1}{\sqrt[3]{(8+2x)^2}}\cdot dx\impliedby \textit{now, let's do some substitution}\\\\
-------------------------------\\\\
u=8+2x\implies \cfrac{du}{dx}=2\implies \cfrac{du}{2}=dx\\\\
-------------------------------\\\\$

$\bf \displaystyle \int\limits_{0}^{28}\ \cfrac{1}{\sqrt[3]{u^2}}\cdot \cfrac{du}{2}\implies \cfrac{1}{2}\int\limits_{0}^{28}\ u^{-\frac{2}{3}}\cdot du\impliedby 
\begin{array}{llll}
\textit{now let's change the bounds}\\
\textit{by using } u(x)
\end{array}\\\\
-------------------------------\\\\
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\\\\\\
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$\bf \\\\
-------------------------------\\\\
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